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Finding the Fourth Proportional to 56,043.20, 83,967.60 and 36,311.60

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Solution

The fourth proportional to 56,043.20, 83,967.60 and 36,311.60 is: 54,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,043.20 : 83,967.60 = 36,311.60 : x
  2. Step 2: Convert to fraction form
    56,043.20/83,967.60 = 36,311.60/x
  3. Step 3: Cross multiply
    56,043.20x = 83,967.60 × 36,311.60
  4. Step 4: Simplify right side
    56,043.20x = 3,048,997,904.16
  5. Step 5: Solve for x
    x = 3,048,997,904.16/56,043.20
  6. Step 6: Final answer
    x = 54,404.42

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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.