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Finding the Fourth Proportional to 16,947,807.60, 25,421,711.40 and 15,703,647.60

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Solution

The fourth proportional to 16,947,807.60, 25,421,711.40 and 15,703,647.60 is: 23,555,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947,807.60 : 25,421,711.40 = 15,703,647.60 : x
  2. Step 2: Convert to fraction form
    16,947,807.60/25,421,711.40 = 15,703,647.60/x
  3. Step 3: Cross multiply
    16,947,807.60x = 25,421,711.40 × 15,703,647.60
  4. Step 4: Simplify right side
    16,947,807.60x = 399,213,597,214,502.62
  5. Step 5: Solve for x
    x = 399,213,597,214,502.62/16,947,807.60
  6. Step 6: Final answer
    x = 23,555,471.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.