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Finding the Fourth Proportional to 61,585.78, 84,988.50 and 33,291.46

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Solution

The fourth proportional to 61,585.78, 84,988.50 and 33,291.46 is: 45,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,585.78 : 84,988.50 = 33,291.46 : x
  2. Step 2: Convert to fraction form
    61,585.78/84,988.50 = 33,291.46/x
  3. Step 3: Cross multiply
    61,585.78x = 84,988.50 × 33,291.46
  4. Step 4: Simplify right side
    61,585.78x = 2,829,391,468.63
  5. Step 5: Solve for x
    x = 2,829,391,468.63/61,585.78
  6. Step 6: Final answer
    x = 45,942.29

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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.