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Finding the Fourth Proportional to 57,458.65, 86,214.08 and 25,851.37

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Solution

The fourth proportional to 57,458.65, 86,214.08 and 25,851.37 is: 38,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,458.65 : 86,214.08 = 25,851.37 : x
  2. Step 2: Convert to fraction form
    57,458.65/86,214.08 = 25,851.37/x
  3. Step 3: Cross multiply
    57,458.65x = 86,214.08 × 25,851.37
  4. Step 4: Simplify right side
    57,458.65x = 2,228,752,081.29
  5. Step 5: Solve for x
    x = 2,228,752,081.29/57,458.65
  6. Step 6: Final answer
    x = 38,788.80

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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.