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Finding the Fourth Proportional to 2,516.76, 3,473.12 and 1,412.76

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Solution

The fourth proportional to 2,516.76, 3,473.12 and 1,412.76 is: 1,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.76 : 3,473.12 = 1,412.76 : x
  2. Step 2: Convert to fraction form
    2,516.76/3,473.12 = 1,412.76/x
  3. Step 3: Cross multiply
    2,516.76x = 3,473.12 × 1,412.76
  4. Step 4: Simplify right side
    2,516.76x = 4,906,685.01
  5. Step 5: Solve for x
    x = 4,906,685.01/2,516.76
  6. Step 6: Final answer
    x = 1,949.60

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Half scale
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Double scale
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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.