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Finding the Fourth Proportional to 10,387.62, 15,569.04 and 5,995.80

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Solution

The fourth proportional to 10,387.62, 15,569.04 and 5,995.80 is: 8,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.62 : 15,569.04 = 5,995.80 : x
  2. Step 2: Convert to fraction form
    10,387.62/15,569.04 = 5,995.80/x
  3. Step 3: Cross multiply
    10,387.62x = 15,569.04 × 5,995.80
  4. Step 4: Simplify right side
    10,387.62x = 93,348,850.03
  5. Step 5: Solve for x
    x = 93,348,850.03/10,387.62
  6. Step 6: Final answer
    x = 8,986.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.