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Finding the Fourth Proportional to 17,855.94, 24,641.20 and 9,899.38

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Solution

The fourth proportional to 17,855.94, 24,641.20 and 9,899.38 is: 13,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.94 : 24,641.20 = 9,899.38 : x
  2. Step 2: Convert to fraction form
    17,855.94/24,641.20 = 9,899.38/x
  3. Step 3: Cross multiply
    17,855.94x = 24,641.20 × 9,899.38
  4. Step 4: Simplify right side
    17,855.94x = 243,932,429.75
  5. Step 5: Solve for x
    x = 243,932,429.75/17,855.94
  6. Step 6: Final answer
    x = 13,661.14

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Similar ratio
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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.