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Finding the Fourth Proportional to 85,251.60, 127,877.40 and 26,087.40

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Solution

The fourth proportional to 85,251.60, 127,877.40 and 26,087.40 is: 39,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,251.60 : 127,877.40 = 26,087.40 : x
  2. Step 2: Convert to fraction form
    85,251.60/127,877.40 = 26,087.40/x
  3. Step 3: Cross multiply
    85,251.60x = 127,877.40 × 26,087.40
  4. Step 4: Simplify right side
    85,251.60x = 3,335,988,884.76
  5. Step 5: Solve for x
    x = 3,335,988,884.76/85,251.60
  6. Step 6: Final answer
    x = 39,131.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.