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Finding the Fourth Proportional to 56,478.53, 84,662.71 and 26,888.42

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Solution

The fourth proportional to 56,478.53, 84,662.71 and 26,888.42 is: 40,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.53 : 84,662.71 = 26,888.42 : x
  2. Step 2: Convert to fraction form
    56,478.53/84,662.71 = 26,888.42/x
  3. Step 3: Cross multiply
    56,478.53x = 84,662.71 × 26,888.42
  4. Step 4: Simplify right side
    56,478.53x = 2,276,446,504.82
  5. Step 5: Solve for x
    x = 2,276,446,504.82/56,478.53
  6. Step 6: Final answer
    x = 40,306.41

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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.