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Finding the Fourth Proportional to 56,480.60, 84,665.82 and 26,890.49

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Solution

The fourth proportional to 56,480.60, 84,665.82 and 26,890.49 is: 40,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.60 : 84,665.82 = 26,890.49 : x
  2. Step 2: Convert to fraction form
    56,480.60/84,665.82 = 26,890.49/x
  3. Step 3: Cross multiply
    56,480.60x = 84,665.82 × 26,890.49
  4. Step 4: Simplify right side
    56,480.60x = 2,276,705,386.05
  5. Step 5: Solve for x
    x = 2,276,705,386.05/56,480.60
  6. Step 6: Final answer
    x = 40,309.51

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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.