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Finding the Fourth Proportional to 3,440.99, 5,161.47 and 2,342.63

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Solution

The fourth proportional to 3,440.99, 5,161.47 and 2,342.63 is: 3,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.99 : 5,161.47 = 2,342.63 : x
  2. Step 2: Convert to fraction form
    3,440.99/5,161.47 = 2,342.63/x
  3. Step 3: Cross multiply
    3,440.99x = 5,161.47 × 2,342.63
  4. Step 4: Simplify right side
    3,440.99x = 12,091,414.47
  5. Step 5: Solve for x
    x = 12,091,414.47/3,440.99
  6. Step 6: Final answer
    x = 3,513.93

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Half scale
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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.