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Finding the Fourth Proportional to 15,124.80, 22,654.80 and 12,532.80

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Solution

The fourth proportional to 15,124.80, 22,654.80 and 12,532.80 is: 18,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.80 : 22,654.80 = 12,532.80 : x
  2. Step 2: Convert to fraction form
    15,124.80/22,654.80 = 12,532.80/x
  3. Step 3: Cross multiply
    15,124.80x = 22,654.80 × 12,532.80
  4. Step 4: Simplify right side
    15,124.80x = 283,928,077.44
  5. Step 5: Solve for x
    x = 283,928,077.44/15,124.80
  6. Step 6: Final answer
    x = 18,772.35

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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.