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Finding the Fourth Proportional to 22,737.54, 34,127.64 and 13,989.54

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Solution

The fourth proportional to 22,737.54, 34,127.64 and 13,989.54 is: 20,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,737.54 : 34,127.64 = 13,989.54 : x
  2. Step 2: Convert to fraction form
    22,737.54/34,127.64 = 13,989.54/x
  3. Step 3: Cross multiply
    22,737.54x = 34,127.64 × 13,989.54
  4. Step 4: Simplify right side
    22,737.54x = 477,429,984.89
  5. Step 5: Solve for x
    x = 477,429,984.89/22,737.54
  6. Step 6: Final answer
    x = 20,997.43

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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.