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Finding the Fourth Proportional to 10,642.91, 14,687.07 and 5,927.23

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Solution

The fourth proportional to 10,642.91, 14,687.07 and 5,927.23 is: 8,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.91 : 14,687.07 = 5,927.23 : x
  2. Step 2: Convert to fraction form
    10,642.91/14,687.07 = 5,927.23/x
  3. Step 3: Cross multiply
    10,642.91x = 14,687.07 × 5,927.23
  4. Step 4: Simplify right side
    10,642.91x = 87,053,568.48
  5. Step 5: Solve for x
    x = 87,053,568.48/10,642.91
  6. Step 6: Final answer
    x = 8,179.49

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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.