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Finding the Fourth Proportional to 7,213.73, 10,809.63 and 5,356.13

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Solution

The fourth proportional to 7,213.73, 10,809.63 and 5,356.13 is: 8,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.73 : 10,809.63 = 5,356.13 : x
  2. Step 2: Convert to fraction form
    7,213.73/10,809.63 = 5,356.13/x
  3. Step 3: Cross multiply
    7,213.73x = 10,809.63 × 5,356.13
  4. Step 4: Simplify right side
    7,213.73x = 57,897,729.48
  5. Step 5: Solve for x
    x = 57,897,729.48/7,213.73
  6. Step 6: Final answer
    x = 8,026.05

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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.