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Finding the Fourth Proportional to 10,479.22, 14,468.73 and 6,949.78

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Solution

The fourth proportional to 10,479.22, 14,468.73 and 6,949.78 is: 9,595.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.22 : 14,468.73 = 6,949.78 : x
  2. Step 2: Convert to fraction form
    10,479.22/14,468.73 = 6,949.78/x
  3. Step 3: Cross multiply
    10,479.22x = 14,468.73 × 6,949.78
  4. Step 4: Simplify right side
    10,479.22x = 100,554,490.38
  5. Step 5: Solve for x
    x = 100,554,490.38/10,479.22
  6. Step 6: Final answer
    x = 9,595.61

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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.