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Finding the Fourth Proportional to 5,269.71, 7,904.48 and 1,571.96

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Solution

The fourth proportional to 5,269.71, 7,904.48 and 1,571.96 is: 2,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.71 : 7,904.48 = 1,571.96 : x
  2. Step 2: Convert to fraction form
    5,269.71/7,904.48 = 1,571.96/x
  3. Step 3: Cross multiply
    5,269.71x = 7,904.48 × 1,571.96
  4. Step 4: Simplify right side
    5,269.71x = 12,425,479.00
  5. Step 5: Solve for x
    x = 12,425,479.00/5,269.71
  6. Step 6: Final answer
    x = 2,357.91

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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.