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Finding the Fourth Proportional to 10,887.56, 15,025.08 and 5,919.56

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Solution

The fourth proportional to 10,887.56, 15,025.08 and 5,919.56 is: 8,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.56 : 15,025.08 = 5,919.56 : x
  2. Step 2: Convert to fraction form
    10,887.56/15,025.08 = 5,919.56/x
  3. Step 3: Cross multiply
    10,887.56x = 15,025.08 × 5,919.56
  4. Step 4: Simplify right side
    10,887.56x = 88,941,862.56
  5. Step 5: Solve for x
    x = 88,941,862.56/10,887.56
  6. Step 6: Final answer
    x = 8,169.13

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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.