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Finding the Fourth Proportional to 7,902.97, 10,892.59 and 6,131.23

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Solution

The fourth proportional to 7,902.97, 10,892.59 and 6,131.23 is: 8,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.97 : 10,892.59 = 6,131.23 : x
  2. Step 2: Convert to fraction form
    7,902.97/10,892.59 = 6,131.23/x
  3. Step 3: Cross multiply
    7,902.97x = 10,892.59 × 6,131.23
  4. Step 4: Simplify right side
    7,902.97x = 66,785,009.48
  5. Step 5: Solve for x
    x = 66,785,009.48/7,902.97
  6. Step 6: Final answer
    x = 8,450.62

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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.