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Finding the Fourth Proportional to 6,803.54, 9,387.68 and 4,151.80

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Solution

The fourth proportional to 6,803.54, 9,387.68 and 4,151.80 is: 5,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,803.54 : 9,387.68 = 4,151.80 : x
  2. Step 2: Convert to fraction form
    6,803.54/9,387.68 = 4,151.80/x
  3. Step 3: Cross multiply
    6,803.54x = 9,387.68 × 4,151.80
  4. Step 4: Simplify right side
    6,803.54x = 38,975,760.80
  5. Step 5: Solve for x
    x = 38,975,760.80/6,803.54
  6. Step 6: Final answer
    x = 5,728.75

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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.