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Finding the Fourth Proportional to 10,607.92, 15,832.50 and 10,432.78

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Solution

The fourth proportional to 10,607.92, 15,832.50 and 10,432.78 is: 15,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.92 : 15,832.50 = 10,432.78 : x
  2. Step 2: Convert to fraction form
    10,607.92/15,832.50 = 10,432.78/x
  3. Step 3: Cross multiply
    10,607.92x = 15,832.50 × 10,432.78
  4. Step 4: Simplify right side
    10,607.92x = 165,176,989.35
  5. Step 5: Solve for x
    x = 165,176,989.35/10,607.92
  6. Step 6: Final answer
    x = 15,571.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.