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Finding the Fourth Proportional to 6,341.79, 9,512.69 and 1,959.15

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Solution

The fourth proportional to 6,341.79, 9,512.69 and 1,959.15 is: 2,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,341.79 : 9,512.69 = 1,959.15 : x
  2. Step 2: Convert to fraction form
    6,341.79/9,512.69 = 1,959.15/x
  3. Step 3: Cross multiply
    6,341.79x = 9,512.69 × 1,959.15
  4. Step 4: Simplify right side
    6,341.79x = 18,636,776.82
  5. Step 5: Solve for x
    x = 18,636,776.82/6,341.79
  6. Step 6: Final answer
    x = 2,938.73

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.