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Finding the Fourth Proportional to 65,387.92, 98,180.29 and 37,339.64

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Solution

The fourth proportional to 65,387.92, 98,180.29 and 37,339.64 is: 56,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,387.92 : 98,180.29 = 37,339.64 : x
  2. Step 2: Convert to fraction form
    65,387.92/98,180.29 = 37,339.64/x
  3. Step 3: Cross multiply
    65,387.92x = 98,180.29 × 37,339.64
  4. Step 4: Simplify right side
    65,387.92x = 3,666,016,683.70
  5. Step 5: Solve for x
    x = 3,666,016,683.70/65,387.92
  6. Step 6: Final answer
    x = 56,065.66

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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.