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Finding the Fourth Proportional to 6,751.20, 9,347.76 and 6,232.80

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Solution

The fourth proportional to 6,751.20, 9,347.76 and 6,232.80 is: 8,629.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.20 : 9,347.76 = 6,232.80 : x
  2. Step 2: Convert to fraction form
    6,751.20/9,347.76 = 6,232.80/x
  3. Step 3: Cross multiply
    6,751.20x = 9,347.76 × 6,232.80
  4. Step 4: Simplify right side
    6,751.20x = 58,262,718.53
  5. Step 5: Solve for x
    x = 58,262,718.53/6,751.20
  6. Step 6: Final answer
    x = 8,629.98

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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.