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Finding the Fourth Proportional to 3,524.77, 5,287.14 and 892.30

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Solution

The fourth proportional to 3,524.77, 5,287.14 and 892.30 is: 1,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,524.77 : 5,287.14 = 892.30 : x
  2. Step 2: Convert to fraction form
    3,524.77/5,287.14 = 892.30/x
  3. Step 3: Cross multiply
    3,524.77x = 5,287.14 × 892.30
  4. Step 4: Simplify right side
    3,524.77x = 4,717,715.02
  5. Step 5: Solve for x
    x = 4,717,715.02/3,524.77
  6. Step 6: Final answer
    x = 1,338.45

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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.