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Finding the Fourth Proportional to 61,362.48, 84,679.80 and 34,866.48

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Solution

The fourth proportional to 61,362.48, 84,679.80 and 34,866.48 is: 48,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,362.48 : 84,679.80 = 34,866.48 : x
  2. Step 2: Convert to fraction form
    61,362.48/84,679.80 = 34,866.48/x
  3. Step 3: Cross multiply
    61,362.48x = 84,679.80 × 34,866.48
  4. Step 4: Simplify right side
    61,362.48x = 2,952,486,553.10
  5. Step 5: Solve for x
    x = 2,952,486,553.10/61,362.48
  6. Step 6: Final answer
    x = 48,115.50

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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.