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Finding the Fourth Proportional to 18,443.56, 25,452.18 and 10,488.40

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Solution

The fourth proportional to 18,443.56, 25,452.18 and 10,488.40 is: 14,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.56 : 25,452.18 = 10,488.40 : x
  2. Step 2: Convert to fraction form
    18,443.56/25,452.18 = 10,488.40/x
  3. Step 3: Cross multiply
    18,443.56x = 25,452.18 × 10,488.40
  4. Step 4: Simplify right side
    18,443.56x = 266,952,644.71
  5. Step 5: Solve for x
    x = 266,952,644.71/18,443.56
  6. Step 6: Final answer
    x = 14,474.03

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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.