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Finding the Fourth Proportional to 10,612.44, 15,842.28 and 9,843.48

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Solution

The fourth proportional to 10,612.44, 15,842.28 and 9,843.48 is: 14,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.44 : 15,842.28 = 9,843.48 : x
  2. Step 2: Convert to fraction form
    10,612.44/15,842.28 = 9,843.48/x
  3. Step 3: Cross multiply
    10,612.44x = 15,842.28 × 9,843.48
  4. Step 4: Simplify right side
    10,612.44x = 155,943,166.33
  5. Step 5: Solve for x
    x = 155,943,166.33/10,612.44
  6. Step 6: Final answer
    x = 14,694.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.