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Finding the Fourth Proportional to 56,478.60, 84,662.82 and 26,888.49

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Solution

The fourth proportional to 56,478.60, 84,662.82 and 26,888.49 is: 40,306.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.60 : 84,662.82 = 26,888.49 : x
  2. Step 2: Convert to fraction form
    56,478.60/84,662.82 = 26,888.49/x
  3. Step 3: Cross multiply
    56,478.60x = 84,662.82 × 26,888.49
  4. Step 4: Simplify right side
    56,478.60x = 2,276,455,388.94
  5. Step 5: Solve for x
    x = 2,276,455,388.94/56,478.60
  6. Step 6: Final answer
    x = 40,306.51

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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.