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Finding the Fourth Proportional to 22,899.75, 34,353.48 and 7,902.78

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Solution

The fourth proportional to 22,899.75, 34,353.48 and 7,902.78 is: 11,855.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,899.75 : 34,353.48 = 7,902.78 : x
  2. Step 2: Convert to fraction form
    22,899.75/34,353.48 = 7,902.78/x
  3. Step 3: Cross multiply
    22,899.75x = 34,353.48 × 7,902.78
  4. Step 4: Simplify right side
    22,899.75x = 271,487,994.67
  5. Step 5: Solve for x
    x = 271,487,994.67/22,899.75
  6. Step 6: Final answer
    x = 11,855.50

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1.5x scale

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.