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Finding the Fourth Proportional to 61,654.88, 85,083.78 and 33,360.60

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Solution

The fourth proportional to 61,654.88, 85,083.78 and 33,360.60 is: 46,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,654.88 : 85,083.78 = 33,360.60 : x
  2. Step 2: Convert to fraction form
    61,654.88/85,083.78 = 33,360.60/x
  3. Step 3: Cross multiply
    61,654.88x = 85,083.78 × 33,360.60
  4. Step 4: Simplify right side
    61,654.88x = 2,838,445,951.07
  5. Step 5: Solve for x
    x = 2,838,445,951.07/61,654.88
  6. Step 6: Final answer
    x = 46,037.65

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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.