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Finding the Fourth Proportional to 22,751.84, 34,083.48 and 12,861.20

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Solution

The fourth proportional to 22,751.84, 34,083.48 and 12,861.20 is: 19,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,751.84 : 34,083.48 = 12,861.20 : x
  2. Step 2: Convert to fraction form
    22,751.84/34,083.48 = 12,861.20/x
  3. Step 3: Cross multiply
    22,751.84x = 34,083.48 × 12,861.20
  4. Step 4: Simplify right side
    22,751.84x = 438,354,452.98
  5. Step 5: Solve for x
    x = 438,354,452.98/22,751.84
  6. Step 6: Final answer
    x = 19,266.77

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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.