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Finding the Fourth Proportional to 36,915.60, 55,335.60 and 18,166.80

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Solution

The fourth proportional to 36,915.60, 55,335.60 and 18,166.80 is: 27,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,915.60 : 55,335.60 = 18,166.80 : x
  2. Step 2: Convert to fraction form
    36,915.60/55,335.60 = 18,166.80/x
  3. Step 3: Cross multiply
    36,915.60x = 55,335.60 × 18,166.80
  4. Step 4: Simplify right side
    36,915.60x = 1,005,270,778.08
  5. Step 5: Solve for x
    x = 1,005,270,778.08/36,915.60
  6. Step 6: Final answer
    x = 27,231.60

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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.