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Finding the Fourth Proportional to 61,618.61, 85,036.65 and 34,760.48

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Solution

The fourth proportional to 61,618.61, 85,036.65 and 34,760.48 is: 47,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,618.61 : 85,036.65 = 34,760.48 : x
  2. Step 2: Convert to fraction form
    61,618.61/85,036.65 = 34,760.48/x
  3. Step 3: Cross multiply
    61,618.61x = 85,036.65 × 34,760.48
  4. Step 4: Simplify right side
    61,618.61x = 2,955,914,771.59
  5. Step 5: Solve for x
    x = 2,955,914,771.59/61,618.61
  6. Step 6: Final answer
    x = 47,971.14

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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.