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Finding the Fourth Proportional to 14,737.20, 22,105.80 and 13,124.40

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Solution

The fourth proportional to 14,737.20, 22,105.80 and 13,124.40 is: 19,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,737.20 : 22,105.80 = 13,124.40 : x
  2. Step 2: Convert to fraction form
    14,737.20/22,105.80 = 13,124.40/x
  3. Step 3: Cross multiply
    14,737.20x = 22,105.80 × 13,124.40
  4. Step 4: Simplify right side
    14,737.20x = 290,125,361.52
  5. Step 5: Solve for x
    x = 290,125,361.52/14,737.20
  6. Step 6: Final answer
    x = 19,686.60

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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.