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Finding the Fourth Proportional to 19,589.88, 27,033.88 and 10,637.28

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Solution

The fourth proportional to 19,589.88, 27,033.88 and 10,637.28 is: 14,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.88 : 27,033.88 = 10,637.28 : x
  2. Step 2: Convert to fraction form
    19,589.88/27,033.88 = 10,637.28/x
  3. Step 3: Cross multiply
    19,589.88x = 27,033.88 × 10,637.28
  4. Step 4: Simplify right side
    19,589.88x = 287,566,951.05
  5. Step 5: Solve for x
    x = 287,566,951.05/19,589.88
  6. Step 6: Final answer
    x = 14,679.36

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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.