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Finding the Fourth Proportional to 12,394.46, 17,104.65 and 7,358.70

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Solution

The fourth proportional to 12,394.46, 17,104.65 and 7,358.70 is: 10,155.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.46 : 17,104.65 = 7,358.70 : x
  2. Step 2: Convert to fraction form
    12,394.46/17,104.65 = 7,358.70/x
  3. Step 3: Cross multiply
    12,394.46x = 17,104.65 × 7,358.70
  4. Step 4: Simplify right side
    12,394.46x = 125,867,987.96
  5. Step 5: Solve for x
    x = 125,867,987.96/12,394.46
  6. Step 6: Final answer
    x = 10,155.18

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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.