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Finding the Fourth Proportional to 10,887.19, 15,024.33 and 5,919.19

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Solution

The fourth proportional to 10,887.19, 15,024.33 and 5,919.19 is: 8,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.19 : 15,024.33 = 5,919.19 : x
  2. Step 2: Convert to fraction form
    10,887.19/15,024.33 = 5,919.19/x
  3. Step 3: Cross multiply
    10,887.19x = 15,024.33 × 5,919.19
  4. Step 4: Simplify right side
    10,887.19x = 88,931,826.33
  5. Step 5: Solve for x
    x = 88,931,826.33/10,887.19
  6. Step 6: Final answer
    x = 8,168.48

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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.