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Finding the Fourth Proportional to 72,003.60, 107,954.20 and 27,613.20

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Solution

The fourth proportional to 72,003.60, 107,954.20 and 27,613.20 is: 41,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003.60 : 107,954.20 = 27,613.20 : x
  2. Step 2: Convert to fraction form
    72,003.60/107,954.20 = 27,613.20/x
  3. Step 3: Cross multiply
    72,003.60x = 107,954.20 × 27,613.20
  4. Step 4: Simplify right side
    72,003.60x = 2,980,960,915.44
  5. Step 5: Solve for x
    x = 2,980,960,915.44/72,003.60
  6. Step 6: Final answer
    x = 41,400.16

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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.