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Finding the Fourth Proportional to 6,337.86, 8,749.08 and 4,217.15

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Solution

The fourth proportional to 6,337.86, 8,749.08 and 4,217.15 is: 5,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,337.86 : 8,749.08 = 4,217.15 : x
  2. Step 2: Convert to fraction form
    6,337.86/8,749.08 = 4,217.15/x
  3. Step 3: Cross multiply
    6,337.86x = 8,749.08 × 4,217.15
  4. Step 4: Simplify right side
    6,337.86x = 36,896,182.72
  5. Step 5: Solve for x
    x = 36,896,182.72/6,337.86
  6. Step 6: Final answer
    x = 5,821.55

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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.