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Finding the Fourth Proportional to 9,003.20, 12,422.94 and 5,024.20

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Solution

The fourth proportional to 9,003.20, 12,422.94 and 5,024.20 is: 6,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,003.20 : 12,422.94 = 5,024.20 : x
  2. Step 2: Convert to fraction form
    9,003.20/12,422.94 = 5,024.20/x
  3. Step 3: Cross multiply
    9,003.20x = 12,422.94 × 5,024.20
  4. Step 4: Simplify right side
    9,003.20x = 62,415,335.15
  5. Step 5: Solve for x
    x = 62,415,335.15/9,003.20
  6. Step 6: Final answer
    x = 6,932.57

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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.