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Finding the Fourth Proportional to 18,188.01, 25,100.48 and 12,127.79

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Solution

The fourth proportional to 18,188.01, 25,100.48 and 12,127.79 is: 16,737.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.01 : 25,100.48 = 12,127.79 : x
  2. Step 2: Convert to fraction form
    18,188.01/25,100.48 = 12,127.79/x
  3. Step 3: Cross multiply
    18,188.01x = 25,100.48 × 12,127.79
  4. Step 4: Simplify right side
    18,188.01x = 304,413,443.41
  5. Step 5: Solve for x
    x = 304,413,443.41/18,188.01
  6. Step 6: Final answer
    x = 16,737.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.