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Finding the Fourth Proportional to 40,321.53, 60,472.53 and 15,360.57

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Solution

The fourth proportional to 40,321.53, 60,472.53 and 15,360.57 is: 23,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,321.53 : 60,472.53 = 15,360.57 : x
  2. Step 2: Convert to fraction form
    40,321.53/60,472.53 = 15,360.57/x
  3. Step 3: Cross multiply
    40,321.53x = 60,472.53 × 15,360.57
  4. Step 4: Simplify right side
    40,321.53x = 928,892,530.14
  5. Step 5: Solve for x
    x = 928,892,530.14/40,321.53
  6. Step 6: Final answer
    x = 23,037.14

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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.