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Finding the Fourth Proportional to 56,717.80, 85,076.70 and 48,844.60

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Solution

The fourth proportional to 56,717.80, 85,076.70 and 48,844.60 is: 73,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,717.80 : 85,076.70 = 48,844.60 : x
  2. Step 2: Convert to fraction form
    56,717.80/85,076.70 = 48,844.60/x
  3. Step 3: Cross multiply
    56,717.80x = 85,076.70 × 48,844.60
  4. Step 4: Simplify right side
    56,717.80x = 4,155,537,380.82
  5. Step 5: Solve for x
    x = 4,155,537,380.82/56,717.80
  6. Step 6: Final answer
    x = 73,266.90

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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.