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Finding the Fourth Proportional to 18,660.91, 25,750.87 and 10,277.41

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Solution

The fourth proportional to 18,660.91, 25,750.87 and 10,277.41 is: 14,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.91 : 25,750.87 = 10,277.41 : x
  2. Step 2: Convert to fraction form
    18,660.91/25,750.87 = 10,277.41/x
  3. Step 3: Cross multiply
    18,660.91x = 25,750.87 × 10,277.41
  4. Step 4: Simplify right side
    18,660.91x = 264,652,248.85
  5. Step 5: Solve for x
    x = 264,652,248.85/18,660.91
  6. Step 6: Final answer
    x = 14,182.17

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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.