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Finding the Fourth Proportional to 7,338.76, 10,127.46 and 4,195

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Solution

The fourth proportional to 7,338.76, 10,127.46 and 4,195 is: 5,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.76 : 10,127.46 = 4,195 : x
  2. Step 2: Convert to fraction form
    7,338.76/10,127.46 = 4,195/x
  3. Step 3: Cross multiply
    7,338.76x = 10,127.46 × 4,195
  4. Step 4: Simplify right side
    7,338.76x = 42,484,694.70
  5. Step 5: Solve for x
    x = 42,484,694.70/7,338.76
  6. Step 6: Final answer
    x = 5,789.08

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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.