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Finding the Fourth Proportional to 53,320.38, 73,581.72 and 29,446.86

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Solution

The fourth proportional to 53,320.38, 73,581.72 and 29,446.86 is: 40,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.38 : 73,581.72 = 29,446.86 : x
  2. Step 2: Convert to fraction form
    53,320.38/73,581.72 = 29,446.86/x
  3. Step 3: Cross multiply
    53,320.38x = 73,581.72 × 29,446.86
  4. Step 4: Simplify right side
    53,320.38x = 2,166,750,607.40
  5. Step 5: Solve for x
    x = 2,166,750,607.40/53,320.38
  6. Step 6: Final answer
    x = 40,636.44

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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.