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Finding the Fourth Proportional to 10,843.88, 14,963.94 and 7,863.48

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Solution

The fourth proportional to 10,843.88, 14,963.94 and 7,863.48 is: 10,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,843.88 : 14,963.94 = 7,863.48 : x
  2. Step 2: Convert to fraction form
    10,843.88/14,963.94 = 7,863.48/x
  3. Step 3: Cross multiply
    10,843.88x = 14,963.94 × 7,863.48
  4. Step 4: Simplify right side
    10,843.88x = 117,668,642.91
  5. Step 5: Solve for x
    x = 117,668,642.91/10,843.88
  6. Step 6: Final answer
    x = 10,851.16

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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.