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Finding the Fourth Proportional to 3,713.94, 5,571.20 and 1,248.74

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Solution

The fourth proportional to 3,713.94, 5,571.20 and 1,248.74 is: 1,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.94 : 5,571.20 = 1,248.74 : x
  2. Step 2: Convert to fraction form
    3,713.94/5,571.20 = 1,248.74/x
  3. Step 3: Cross multiply
    3,713.94x = 5,571.20 × 1,248.74
  4. Step 4: Simplify right side
    3,713.94x = 6,956,980.29
  5. Step 5: Solve for x
    x = 6,956,980.29/3,713.94
  6. Step 6: Final answer
    x = 1,873.21

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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.