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Finding the Fourth Proportional to 57,656.65, 86,456.18 and 26,456.65

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Solution

The fourth proportional to 57,656.65, 86,456.18 and 26,456.65 is: 39,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,656.65 : 86,456.18 = 26,456.65 : x
  2. Step 2: Convert to fraction form
    57,656.65/86,456.18 = 26,456.65/x
  3. Step 3: Cross multiply
    57,656.65x = 86,456.18 × 26,456.65
  4. Step 4: Simplify right side
    57,656.65x = 2,287,340,762.31
  5. Step 5: Solve for x
    x = 2,287,340,762.31/57,656.65
  6. Step 6: Final answer
    x = 39,671.76

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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.