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Finding the Fourth Proportional to 62,697.16, 86,520.90 and 34,402.60

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Solution

The fourth proportional to 62,697.16, 86,520.90 and 34,402.60 is: 47,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,697.16 : 86,520.90 = 34,402.60 : x
  2. Step 2: Convert to fraction form
    62,697.16/86,520.90 = 34,402.60/x
  3. Step 3: Cross multiply
    62,697.16x = 86,520.90 × 34,402.60
  4. Step 4: Simplify right side
    62,697.16x = 2,976,543,914.34
  5. Step 5: Solve for x
    x = 2,976,543,914.34/62,697.16
  6. Step 6: Final answer
    x = 47,474.94

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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.