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Finding the Fourth Proportional to 11,382.88, 15,710.48 and 6,844.32

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Solution

The fourth proportional to 11,382.88, 15,710.48 and 6,844.32 is: 9,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.88 : 15,710.48 = 6,844.32 : x
  2. Step 2: Convert to fraction form
    11,382.88/15,710.48 = 6,844.32/x
  3. Step 3: Cross multiply
    11,382.88x = 15,710.48 × 6,844.32
  4. Step 4: Simplify right side
    11,382.88x = 107,527,552.47
  5. Step 5: Solve for x
    x = 107,527,552.47/11,382.88
  6. Step 6: Final answer
    x = 9,446.43

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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.