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Finding the Fourth Proportional to 10,891.26, 15,035.63 and 7,359.26

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Solution

The fourth proportional to 10,891.26, 15,035.63 and 7,359.26 is: 10,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.26 : 15,035.63 = 7,359.26 : x
  2. Step 2: Convert to fraction form
    10,891.26/15,035.63 = 7,359.26/x
  3. Step 3: Cross multiply
    10,891.26x = 15,035.63 × 7,359.26
  4. Step 4: Simplify right side
    10,891.26x = 110,650,998.46
  5. Step 5: Solve for x
    x = 110,650,998.46/10,891.26
  6. Step 6: Final answer
    x = 10,159.61

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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.