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Finding the Fourth Proportional to 16,711.87, 25,064.98 and 7,828.15

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Solution

The fourth proportional to 16,711.87, 25,064.98 and 7,828.15 is: 11,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,711.87 : 25,064.98 = 7,828.15 : x
  2. Step 2: Convert to fraction form
    16,711.87/25,064.98 = 7,828.15/x
  3. Step 3: Cross multiply
    16,711.87x = 25,064.98 × 7,828.15
  4. Step 4: Simplify right side
    16,711.87x = 196,212,423.19
  5. Step 5: Solve for x
    x = 196,212,423.19/16,711.87
  6. Step 6: Final answer
    x = 11,740.90

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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.