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Finding the Fourth Proportional to 7,194.72, 10,792.10 and 2,809.11

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Solution

The fourth proportional to 7,194.72, 10,792.10 and 2,809.11 is: 4,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.72 : 10,792.10 = 2,809.11 : x
  2. Step 2: Convert to fraction form
    7,194.72/10,792.10 = 2,809.11/x
  3. Step 3: Cross multiply
    7,194.72x = 10,792.10 × 2,809.11
  4. Step 4: Simplify right side
    7,194.72x = 30,316,152.47
  5. Step 5: Solve for x
    x = 30,316,152.47/7,194.72
  6. Step 6: Final answer
    x = 4,213.66

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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.