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Finding the Fourth Proportional to 9,335.97, 12,879.42 and 6,148.42

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Solution

The fourth proportional to 9,335.97, 12,879.42 and 6,148.42 is: 8,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,335.97 : 12,879.42 = 6,148.42 : x
  2. Step 2: Convert to fraction form
    9,335.97/12,879.42 = 6,148.42/x
  3. Step 3: Cross multiply
    9,335.97x = 12,879.42 × 6,148.42
  4. Step 4: Simplify right side
    9,335.97x = 79,188,019.12
  5. Step 5: Solve for x
    x = 79,188,019.12/9,335.97
  6. Step 6: Final answer
    x = 8,482.03

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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.