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Finding the Fourth Proportional to 7,104.42, 10,657.17 and 1,910.22

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Solution

The fourth proportional to 7,104.42, 10,657.17 and 1,910.22 is: 2,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.42 : 10,657.17 = 1,910.22 : x
  2. Step 2: Convert to fraction form
    7,104.42/10,657.17 = 1,910.22/x
  3. Step 3: Cross multiply
    7,104.42x = 10,657.17 × 1,910.22
  4. Step 4: Simplify right side
    7,104.42x = 20,357,539.28
  5. Step 5: Solve for x
    x = 20,357,539.28/7,104.42
  6. Step 6: Final answer
    x = 2,865.48

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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.