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Finding the Fourth Proportional to 6,221.86, 8,585.92 and 3,569.52

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Solution

The fourth proportional to 6,221.86, 8,585.92 and 3,569.52 is: 4,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.86 : 8,585.92 = 3,569.52 : x
  2. Step 2: Convert to fraction form
    6,221.86/8,585.92 = 3,569.52/x
  3. Step 3: Cross multiply
    6,221.86x = 8,585.92 × 3,569.52
  4. Step 4: Simplify right side
    6,221.86x = 30,647,613.16
  5. Step 5: Solve for x
    x = 30,647,613.16/6,221.86
  6. Step 6: Final answer
    x = 4,925.80

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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.