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Finding the Fourth Proportional to 10,891.97, 15,034.07 and 7,063.50

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Solution

The fourth proportional to 10,891.97, 15,034.07 and 7,063.50 is: 9,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.97 : 15,034.07 = 7,063.50 : x
  2. Step 2: Convert to fraction form
    10,891.97/15,034.07 = 7,063.50/x
  3. Step 3: Cross multiply
    10,891.97x = 15,034.07 × 7,063.50
  4. Step 4: Simplify right side
    10,891.97x = 106,193,227.48
  5. Step 5: Solve for x
    x = 106,193,227.48/10,891.97
  6. Step 6: Final answer
    x = 9,749.68

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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.