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Finding the Fourth Proportional to 11,888.92, 17,915.14 and 9,854.62

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Solution

The fourth proportional to 11,888.92, 17,915.14 and 9,854.62 is: 14,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.92 : 17,915.14 = 9,854.62 : x
  2. Step 2: Convert to fraction form
    11,888.92/17,915.14 = 9,854.62/x
  3. Step 3: Cross multiply
    11,888.92x = 17,915.14 × 9,854.62
  4. Step 4: Simplify right side
    11,888.92x = 176,546,896.95
  5. Step 5: Solve for x
    x = 176,546,896.95/11,888.92
  6. Step 6: Final answer
    x = 14,849.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.