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Finding the Fourth Proportional to 6,698.80, 9,233.69 and 5,280.19

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Solution

The fourth proportional to 6,698.80, 9,233.69 and 5,280.19 is: 7,278.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.80 : 9,233.69 = 5,280.19 : x
  2. Step 2: Convert to fraction form
    6,698.80/9,233.69 = 5,280.19/x
  3. Step 3: Cross multiply
    6,698.80x = 9,233.69 × 5,280.19
  4. Step 4: Simplify right side
    6,698.80x = 48,755,584.83
  5. Step 5: Solve for x
    x = 48,755,584.83/6,698.80
  6. Step 6: Final answer
    x = 7,278.26

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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.