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Finding the Fourth Proportional to 9,395.80, 12,959.98 and 6,042.85

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Solution

The fourth proportional to 9,395.80, 12,959.98 and 6,042.85 is: 8,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.80 : 12,959.98 = 6,042.85 : x
  2. Step 2: Convert to fraction form
    9,395.80/12,959.98 = 6,042.85/x
  3. Step 3: Cross multiply
    9,395.80x = 12,959.98 × 6,042.85
  4. Step 4: Simplify right side
    9,395.80x = 78,315,167.64
  5. Step 5: Solve for x
    x = 78,315,167.64/9,395.80
  6. Step 6: Final answer
    x = 8,335.13

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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.