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Finding the Fourth Proportional to 42,472.96, 63,709.08 and 10,882.96

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Solution

The fourth proportional to 42,472.96, 63,709.08 and 10,882.96 is: 16,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,472.96 : 63,709.08 = 10,882.96 : x
  2. Step 2: Convert to fraction form
    42,472.96/63,709.08 = 10,882.96/x
  3. Step 3: Cross multiply
    42,472.96x = 63,709.08 × 10,882.96
  4. Step 4: Simplify right side
    42,472.96x = 693,343,369.28
  5. Step 5: Solve for x
    x = 693,343,369.28/42,472.96
  6. Step 6: Final answer
    x = 16,324.35

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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.