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Finding the Fourth Proportional to 64,562.76, 96,877.31 and 26,640.05

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Solution

The fourth proportional to 64,562.76, 96,877.31 and 26,640.05 is: 39,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,562.76 : 96,877.31 = 26,640.05 : x
  2. Step 2: Convert to fraction form
    64,562.76/96,877.31 = 26,640.05/x
  3. Step 3: Cross multiply
    64,562.76x = 96,877.31 × 26,640.05
  4. Step 4: Simplify right side
    64,562.76x = 2,580,815,764.68
  5. Step 5: Solve for x
    x = 2,580,815,764.68/64,562.76
  6. Step 6: Final answer
    x = 39,973.75

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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.