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Finding the Fourth Proportional to 6,337.20, 8,736.12 and 4,237.68

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Solution

The fourth proportional to 6,337.20, 8,736.12 and 4,237.68 is: 5,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,337.20 : 8,736.12 = 4,237.68 : x
  2. Step 2: Convert to fraction form
    6,337.20/8,736.12 = 4,237.68/x
  3. Step 3: Cross multiply
    6,337.20x = 8,736.12 × 4,237.68
  4. Step 4: Simplify right side
    6,337.20x = 37,020,881.00
  5. Step 5: Solve for x
    x = 37,020,881.00/6,337.20
  6. Step 6: Final answer
    x = 5,841.84

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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.