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Finding the Fourth Proportional to 61,886.02, 85,402.81 and 33,591.70

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Solution

The fourth proportional to 61,886.02, 85,402.81 and 33,591.70 is: 46,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,886.02 : 85,402.81 = 33,591.70 : x
  2. Step 2: Convert to fraction form
    61,886.02/85,402.81 = 33,591.70/x
  3. Step 3: Cross multiply
    61,886.02x = 85,402.81 × 33,591.70
  4. Step 4: Simplify right side
    61,886.02x = 2,868,825,572.68
  5. Step 5: Solve for x
    x = 2,868,825,572.68/61,886.02
  6. Step 6: Final answer
    x = 46,356.60

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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.