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Finding the Fourth Proportional to 90,597.59, 135,897.72 and 27,418.33

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Solution

The fourth proportional to 90,597.59, 135,897.72 and 27,418.33 is: 41,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,597.59 : 135,897.72 = 27,418.33 : x
  2. Step 2: Convert to fraction form
    90,597.59/135,897.72 = 27,418.33/x
  3. Step 3: Cross multiply
    90,597.59x = 135,897.72 × 27,418.33
  4. Step 4: Simplify right side
    90,597.59x = 3,726,088,600.26
  5. Step 5: Solve for x
    x = 3,726,088,600.26/90,597.59
  6. Step 6: Final answer
    x = 41,127.90

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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.