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Finding the Fourth Proportional to 7,073.30, 9,760.41 and 4,090.08

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Solution

The fourth proportional to 7,073.30, 9,760.41 and 4,090.08 is: 5,643.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.30 : 9,760.41 = 4,090.08 : x
  2. Step 2: Convert to fraction form
    7,073.30/9,760.41 = 4,090.08/x
  3. Step 3: Cross multiply
    7,073.30x = 9,760.41 × 4,090.08
  4. Step 4: Simplify right side
    7,073.30x = 39,920,857.73
  5. Step 5: Solve for x
    x = 39,920,857.73/7,073.30
  6. Step 6: Final answer
    x = 5,643.88

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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.