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Finding the Fourth Proportional to 72,706.05, 109,059.07 and 22,786.14

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Solution

The fourth proportional to 72,706.05, 109,059.07 and 22,786.14 is: 34,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,706.05 : 109,059.07 = 22,786.14 : x
  2. Step 2: Convert to fraction form
    72,706.05/109,059.07 = 22,786.14/x
  3. Step 3: Cross multiply
    72,706.05x = 109,059.07 × 22,786.14
  4. Step 4: Simplify right side
    72,706.05x = 2,485,034,691.99
  5. Step 5: Solve for x
    x = 2,485,034,691.99/72,706.05
  6. Step 6: Final answer
    x = 34,179.20

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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.