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Finding the Fourth Proportional to 62,699.70, 86,526.96 and 34,405.44

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Solution

The fourth proportional to 62,699.70, 86,526.96 and 34,405.44 is: 47,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,699.70 : 86,526.96 = 34,405.44 : x
  2. Step 2: Convert to fraction form
    62,699.70/86,526.96 = 34,405.44/x
  3. Step 3: Cross multiply
    62,699.70x = 86,526.96 × 34,405.44
  4. Step 4: Simplify right side
    62,699.70x = 2,976,998,130.66
  5. Step 5: Solve for x
    x = 2,976,998,130.66/62,699.70
  6. Step 6: Final answer
    x = 47,480.26

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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.