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Finding the Fourth Proportional to 7,049.48, 9,728.01 and 4,065.44

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Solution

The fourth proportional to 7,049.48, 9,728.01 and 4,065.44 is: 5,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.48 : 9,728.01 = 4,065.44 : x
  2. Step 2: Convert to fraction form
    7,049.48/9,728.01 = 4,065.44/x
  3. Step 3: Cross multiply
    7,049.48x = 9,728.01 × 4,065.44
  4. Step 4: Simplify right side
    7,049.48x = 39,548,592.33
  5. Step 5: Solve for x
    x = 39,548,592.33/7,049.48
  6. Step 6: Final answer
    x = 5,610.15

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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.