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Finding the Fourth Proportional to 9,425.97, 12,987.14 and 7,025.74

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Solution

The fourth proportional to 9,425.97, 12,987.14 and 7,025.74 is: 9,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,425.97 : 12,987.14 = 7,025.74 : x
  2. Step 2: Convert to fraction form
    9,425.97/12,987.14 = 7,025.74/x
  3. Step 3: Cross multiply
    9,425.97x = 12,987.14 × 7,025.74
  4. Step 4: Simplify right side
    9,425.97x = 91,244,201.39
  5. Step 5: Solve for x
    x = 91,244,201.39/9,425.97
  6. Step 6: Final answer
    x = 9,680.09

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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.