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Finding the Fourth Proportional to 7,202.85, 9,939.75 and 4,016.13

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Solution

The fourth proportional to 7,202.85, 9,939.75 and 4,016.13 is: 5,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202.85 : 9,939.75 = 4,016.13 : x
  2. Step 2: Convert to fraction form
    7,202.85/9,939.75 = 4,016.13/x
  3. Step 3: Cross multiply
    7,202.85x = 9,939.75 × 4,016.13
  4. Step 4: Simplify right side
    7,202.85x = 39,919,328.17
  5. Step 5: Solve for x
    x = 39,919,328.17/7,202.85
  6. Step 6: Final answer
    x = 5,542.16

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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.