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Finding the Fourth Proportional to 16,432.70, 22,668.98 and 9,715.10

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Solution

The fourth proportional to 16,432.70, 22,668.98 and 9,715.10 is: 13,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,432.70 : 22,668.98 = 9,715.10 : x
  2. Step 2: Convert to fraction form
    16,432.70/22,668.98 = 9,715.10/x
  3. Step 3: Cross multiply
    16,432.70x = 22,668.98 × 9,715.10
  4. Step 4: Simplify right side
    16,432.70x = 220,231,407.60
  5. Step 5: Solve for x
    x = 220,231,407.60/16,432.70
  6. Step 6: Final answer
    x = 13,402.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.