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Finding the Fourth Proportional to 8,821.56, 12,173.13 and 5,044.89

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Solution

The fourth proportional to 8,821.56, 12,173.13 and 5,044.89 is: 6,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.56 : 12,173.13 = 5,044.89 : x
  2. Step 2: Convert to fraction form
    8,821.56/12,173.13 = 5,044.89/x
  3. Step 3: Cross multiply
    8,821.56x = 12,173.13 × 5,044.89
  4. Step 4: Simplify right side
    8,821.56x = 61,412,101.81
  5. Step 5: Solve for x
    x = 61,412,101.81/8,821.56
  6. Step 6: Final answer
    x = 6,961.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.