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Finding the Fourth Proportional to 62,988.48, 86,922.31 and 34,307.49

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Solution

The fourth proportional to 62,988.48, 86,922.31 and 34,307.49 is: 47,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.48 : 86,922.31 = 34,307.49 : x
  2. Step 2: Convert to fraction form
    62,988.48/86,922.31 = 34,307.49/x
  3. Step 3: Cross multiply
    62,988.48x = 86,922.31 × 34,307.49
  4. Step 4: Simplify right side
    62,988.48x = 2,982,086,281.10
  5. Step 5: Solve for x
    x = 2,982,086,281.10/62,988.48
  6. Step 6: Final answer
    x = 47,343.36

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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.