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Finding the Fourth Proportional to 18,446.71, 25,456.34 and 10,488.94

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Solution

The fourth proportional to 18,446.71, 25,456.34 and 10,488.94 is: 14,474.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.71 : 25,456.34 = 10,488.94 : x
  2. Step 2: Convert to fraction form
    18,446.71/25,456.34 = 10,488.94/x
  3. Step 3: Cross multiply
    18,446.71x = 25,456.34 × 10,488.94
  4. Step 4: Simplify right side
    18,446.71x = 267,009,964.41
  5. Step 5: Solve for x
    x = 267,009,964.41/18,446.71
  6. Step 6: Final answer
    x = 14,474.66

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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.