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Finding the Fourth Proportional to 61,347.78, 84,660.92 and 33,753.60

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Solution

The fourth proportional to 61,347.78, 84,660.92 and 33,753.60 is: 46,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,347.78 : 84,660.92 = 33,753.60 : x
  2. Step 2: Convert to fraction form
    61,347.78/84,660.92 = 33,753.60/x
  3. Step 3: Cross multiply
    61,347.78x = 84,660.92 × 33,753.60
  4. Step 4: Simplify right side
    61,347.78x = 2,857,610,660.54
  5. Step 5: Solve for x
    x = 2,857,610,660.54/61,347.78
  6. Step 6: Final answer
    x = 46,580.51

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1.5x scale

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.