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Finding the Fourth Proportional to 16,711.31, 25,069.60 and 7,943.27

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Solution

The fourth proportional to 16,711.31, 25,069.60 and 7,943.27 is: 11,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,711.31 : 25,069.60 = 7,943.27 : x
  2. Step 2: Convert to fraction form
    16,711.31/25,069.60 = 7,943.27/x
  3. Step 3: Cross multiply
    16,711.31x = 25,069.60 × 7,943.27
  4. Step 4: Simplify right side
    16,711.31x = 199,134,486.17
  5. Step 5: Solve for x
    x = 199,134,486.17/16,711.31
  6. Step 6: Final answer
    x = 11,916.15

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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.