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Finding the Fourth Proportional to 65,683.72, 98,442.51 and 41,982.13

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Solution

The fourth proportional to 65,683.72, 98,442.51 and 41,982.13 is: 62,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,683.72 : 98,442.51 = 41,982.13 : x
  2. Step 2: Convert to fraction form
    65,683.72/98,442.51 = 41,982.13/x
  3. Step 3: Cross multiply
    65,683.72x = 98,442.51 × 41,982.13
  4. Step 4: Simplify right side
    65,683.72x = 4,132,826,252.35
  5. Step 5: Solve for x
    x = 4,132,826,252.35/65,683.72
  6. Step 6: Final answer
    x = 62,920.10

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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.