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Finding the Fourth Proportional to 60,434.60, 90,620.75 and 27,126.12

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Solution

The fourth proportional to 60,434.60, 90,620.75 and 27,126.12 is: 40,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,434.60 : 90,620.75 = 27,126.12 : x
  2. Step 2: Convert to fraction form
    60,434.60/90,620.75 = 27,126.12/x
  3. Step 3: Cross multiply
    60,434.60x = 90,620.75 × 27,126.12
  4. Step 4: Simplify right side
    60,434.60x = 2,458,189,746.63
  5. Step 5: Solve for x
    x = 2,458,189,746.63/60,434.60
  6. Step 6: Final answer
    x = 40,675.21

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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.