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Finding the Fourth Proportional to 11,425.11, 17,114.58 and 8,948.13

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Solution

The fourth proportional to 11,425.11, 17,114.58 and 8,948.13 is: 13,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.11 : 17,114.58 = 8,948.13 : x
  2. Step 2: Convert to fraction form
    11,425.11/17,114.58 = 8,948.13/x
  3. Step 3: Cross multiply
    11,425.11x = 17,114.58 × 8,948.13
  4. Step 4: Simplify right side
    11,425.11x = 153,143,486.74
  5. Step 5: Solve for x
    x = 153,143,486.74/11,425.11
  6. Step 6: Final answer
    x = 13,404.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.