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Finding the Fourth Proportional to 18,523.92, 25,557.78 and 10,966.93

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Solution

The fourth proportional to 18,523.92, 25,557.78 and 10,966.93 is: 15,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.92 : 25,557.78 = 10,966.93 : x
  2. Step 2: Convert to fraction form
    18,523.92/25,557.78 = 10,966.93/x
  3. Step 3: Cross multiply
    18,523.92x = 25,557.78 × 10,966.93
  4. Step 4: Simplify right side
    18,523.92x = 280,290,384.22
  5. Step 5: Solve for x
    x = 280,290,384.22/18,523.92
  6. Step 6: Final answer
    x = 15,131.27

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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.