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Finding the Fourth Proportional to 32,387.67, 48,581.49 and 12,652.38

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Solution

The fourth proportional to 32,387.67, 48,581.49 and 12,652.38 is: 18,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,387.67 : 48,581.49 = 12,652.38 : x
  2. Step 2: Convert to fraction form
    32,387.67/48,581.49 = 12,652.38/x
  3. Step 3: Cross multiply
    32,387.67x = 48,581.49 × 12,652.38
  4. Step 4: Simplify right side
    32,387.67x = 614,671,472.45
  5. Step 5: Solve for x
    x = 614,671,472.45/32,387.67
  6. Step 6: Final answer
    x = 18,978.56

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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.