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Finding the Fourth Proportional to 22,728.48, 34,068.78 and 8,679.48

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Solution

The fourth proportional to 22,728.48, 34,068.78 and 8,679.48 is: 13,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.48 : 34,068.78 = 8,679.48 : x
  2. Step 2: Convert to fraction form
    22,728.48/34,068.78 = 8,679.48/x
  3. Step 3: Cross multiply
    22,728.48x = 34,068.78 × 8,679.48
  4. Step 4: Simplify right side
    22,728.48x = 295,699,294.63
  5. Step 5: Solve for x
    x = 295,699,294.63/22,728.48
  6. Step 6: Final answer
    x = 13,010.08

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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.