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Finding the Fourth Proportional to 18,444.98, 25,454.16 and 10,488.88

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Solution

The fourth proportional to 18,444.98, 25,454.16 and 10,488.88 is: 14,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,444.98 : 25,454.16 = 10,488.88 : x
  2. Step 2: Convert to fraction form
    18,444.98/25,454.16 = 10,488.88/x
  3. Step 3: Cross multiply
    18,444.98x = 25,454.16 × 10,488.88
  4. Step 4: Simplify right side
    18,444.98x = 266,985,629.74
  5. Step 5: Solve for x
    x = 266,985,629.74/18,444.98
  6. Step 6: Final answer
    x = 14,474.70

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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.