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Finding the Fourth Proportional to 28,474.62, 42,605.01 and 26,974.50

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Solution

The fourth proportional to 28,474.62, 42,605.01 and 26,974.50 is: 40,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.62 : 42,605.01 = 26,974.50 : x
  2. Step 2: Convert to fraction form
    28,474.62/42,605.01 = 26,974.50/x
  3. Step 3: Cross multiply
    28,474.62x = 42,605.01 × 26,974.50
  4. Step 4: Simplify right side
    28,474.62x = 1,149,248,842.25
  5. Step 5: Solve for x
    x = 1,149,248,842.25/28,474.62
  6. Step 6: Final answer
    x = 40,360.46

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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.