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Finding the Fourth Proportional to 6,342.32, 8,752.22 and 3,509.81

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Solution

The fourth proportional to 6,342.32, 8,752.22 and 3,509.81 is: 4,843.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.32 : 8,752.22 = 3,509.81 : x
  2. Step 2: Convert to fraction form
    6,342.32/8,752.22 = 3,509.81/x
  3. Step 3: Cross multiply
    6,342.32x = 8,752.22 × 3,509.81
  4. Step 4: Simplify right side
    6,342.32x = 30,718,613.95
  5. Step 5: Solve for x
    x = 30,718,613.95/6,342.32
  6. Step 6: Final answer
    x = 4,843.44

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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.