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Finding the Fourth Proportional to 7,073.04, 9,760.62 and 3,929.24

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Solution

The fourth proportional to 7,073.04, 9,760.62 and 3,929.24 is: 5,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.04 : 9,760.62 = 3,929.24 : x
  2. Step 2: Convert to fraction form
    7,073.04/9,760.62 = 3,929.24/x
  3. Step 3: Cross multiply
    7,073.04x = 9,760.62 × 3,929.24
  4. Step 4: Simplify right side
    7,073.04x = 38,351,769.73
  5. Step 5: Solve for x
    x = 38,351,769.73/7,073.04
  6. Step 6: Final answer
    x = 5,422.25

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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.