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Finding the Fourth Proportional to 56,758.35, 77,759.28 and 54,630.12

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Solution

The fourth proportional to 56,758.35, 77,759.28 and 54,630.12 is: 74,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,758.35 : 77,759.28 = 54,630.12 : x
  2. Step 2: Convert to fraction form
    56,758.35/77,759.28 = 54,630.12/x
  3. Step 3: Cross multiply
    56,758.35x = 77,759.28 × 54,630.12
  4. Step 4: Simplify right side
    56,758.35x = 4,247,998,793.59
  5. Step 5: Solve for x
    x = 4,247,998,793.59/56,758.35
  6. Step 6: Final answer
    x = 74,843.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.