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Finding the Fourth Proportional to 16,947,820.60, 25,421,730.90 and 15,703,660.60

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Solution

The fourth proportional to 16,947,820.60, 25,421,730.90 and 15,703,660.60 is: 23,555,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947,820.60 : 25,421,730.90 = 15,703,660.60 : x
  2. Step 2: Convert to fraction form
    16,947,820.60/25,421,730.90 = 15,703,660.60/x
  3. Step 3: Cross multiply
    16,947,820.60x = 25,421,730.90 × 15,703,660.60
  4. Step 4: Simplify right side
    16,947,820.60x = 399,214,233,918,132.50
  5. Step 5: Solve for x
    x = 399,214,233,918,132.50/16,947,820.60
  6. Step 6: Final answer
    x = 23,555,490.90

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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.