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Finding the Fourth Proportional to 29,652.38, 40,920.80 and 16,224.81

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Solution

The fourth proportional to 29,652.38, 40,920.80 and 16,224.81 is: 22,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,652.38 : 40,920.80 = 16,224.81 : x
  2. Step 2: Convert to fraction form
    29,652.38/40,920.80 = 16,224.81/x
  3. Step 3: Cross multiply
    29,652.38x = 40,920.80 × 16,224.81
  4. Step 4: Simplify right side
    29,652.38x = 663,931,970.47
  5. Step 5: Solve for x
    x = 663,931,970.47/29,652.38
  6. Step 6: Final answer
    x = 22,390.51

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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.