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Finding the Fourth Proportional to 65,472.83, 98,015.48 and 40,432.38

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Solution

The fourth proportional to 65,472.83, 98,015.48 and 40,432.38 is: 60,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,472.83 : 98,015.48 = 40,432.38 : x
  2. Step 2: Convert to fraction form
    65,472.83/98,015.48 = 40,432.38/x
  3. Step 3: Cross multiply
    65,472.83x = 98,015.48 × 40,432.38
  4. Step 4: Simplify right side
    65,472.83x = 3,962,999,133.24
  5. Step 5: Solve for x
    x = 3,962,999,133.24/65,472.83
  6. Step 6: Final answer
    x = 60,528.91

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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.