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Finding the Fourth Proportional to 56,747.60, 85,121.40 and 44,997.20

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Solution

The fourth proportional to 56,747.60, 85,121.40 and 44,997.20 is: 67,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.60 : 85,121.40 = 44,997.20 : x
  2. Step 2: Convert to fraction form
    56,747.60/85,121.40 = 44,997.20/x
  3. Step 3: Cross multiply
    56,747.60x = 85,121.40 × 44,997.20
  4. Step 4: Simplify right side
    56,747.60x = 3,830,224,660.08
  5. Step 5: Solve for x
    x = 3,830,224,660.08/56,747.60
  6. Step 6: Final answer
    x = 67,495.80

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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.