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Finding the Fourth Proportional to 5,159.71, 7,743.32 and 1,873.07

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Solution

The fourth proportional to 5,159.71, 7,743.32 and 1,873.07 is: 2,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.71 : 7,743.32 = 1,873.07 : x
  2. Step 2: Convert to fraction form
    5,159.71/7,743.32 = 1,873.07/x
  3. Step 3: Cross multiply
    5,159.71x = 7,743.32 × 1,873.07
  4. Step 4: Simplify right side
    5,159.71x = 14,503,780.39
  5. Step 5: Solve for x
    x = 14,503,780.39/5,159.71
  6. Step 6: Final answer
    x = 2,810.97

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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.