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Finding the Fourth Proportional to 61,321.68, 84,618.68 and 34,462.08

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Solution

The fourth proportional to 61,321.68, 84,618.68 and 34,462.08 is: 47,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,321.68 : 84,618.68 = 34,462.08 : x
  2. Step 2: Convert to fraction form
    61,321.68/84,618.68 = 34,462.08/x
  3. Step 3: Cross multiply
    61,321.68x = 84,618.68 × 34,462.08
  4. Step 4: Simplify right side
    61,321.68x = 2,916,135,719.65
  5. Step 5: Solve for x
    x = 2,916,135,719.65/61,321.68
  6. Step 6: Final answer
    x = 47,554.73

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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.