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Finding the Fourth Proportional to 10,591.97, 15,890.00 and 5,328.13

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Solution

The fourth proportional to 10,591.97, 15,890.00 and 5,328.13 is: 7,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,591.97 : 15,890.00 = 5,328.13 : x
  2. Step 2: Convert to fraction form
    10,591.97/15,890.00 = 5,328.13/x
  3. Step 3: Cross multiply
    10,591.97x = 15,890.00 × 5,328.13
  4. Step 4: Simplify right side
    10,591.97x = 84,663,919.33
  5. Step 5: Solve for x
    x = 84,663,919.33/10,591.97
  6. Step 6: Final answer
    x = 7,993.22

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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.