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Finding the Fourth Proportional to 28,028.80, 41,956.80 and 24,918.40

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Solution

The fourth proportional to 28,028.80, 41,956.80 and 24,918.40 is: 37,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.80 : 41,956.80 = 24,918.40 : x
  2. Step 2: Convert to fraction form
    28,028.80/41,956.80 = 24,918.40/x
  3. Step 3: Cross multiply
    28,028.80x = 41,956.80 × 24,918.40
  4. Step 4: Simplify right side
    28,028.80x = 1,045,496,325.12
  5. Step 5: Solve for x
    x = 1,045,496,325.12/28,028.80
  6. Step 6: Final answer
    x = 37,300.79

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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.