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Finding the Fourth Proportional to 6,622.12, 9,133.86 and 4,531.24

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Solution

The fourth proportional to 6,622.12, 9,133.86 and 4,531.24 is: 6,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.12 : 9,133.86 = 4,531.24 : x
  2. Step 2: Convert to fraction form
    6,622.12/9,133.86 = 4,531.24/x
  3. Step 3: Cross multiply
    6,622.12x = 9,133.86 × 4,531.24
  4. Step 4: Simplify right side
    6,622.12x = 41,387,711.79
  5. Step 5: Solve for x
    x = 41,387,711.79/6,622.12
  6. Step 6: Final answer
    x = 6,249.92

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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.