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Finding the Fourth Proportional to 15,452.80, 23,140.80 and 14,761.60

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Solution

The fourth proportional to 15,452.80, 23,140.80 and 14,761.60 is: 22,105.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.80 : 23,140.80 = 14,761.60 : x
  2. Step 2: Convert to fraction form
    15,452.80/23,140.80 = 14,761.60/x
  3. Step 3: Cross multiply
    15,452.80x = 23,140.80 × 14,761.60
  4. Step 4: Simplify right side
    15,452.80x = 341,595,233.28
  5. Step 5: Solve for x
    x = 341,595,233.28/15,452.80
  6. Step 6: Final answer
    x = 22,105.72

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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.