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Finding the Fourth Proportional to 8,803.56, 12,149.86 and 5,616.94

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Solution

The fourth proportional to 8,803.56, 12,149.86 and 5,616.94 is: 7,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.56 : 12,149.86 = 5,616.94 : x
  2. Step 2: Convert to fraction form
    8,803.56/12,149.86 = 5,616.94/x
  3. Step 3: Cross multiply
    8,803.56x = 12,149.86 × 5,616.94
  4. Step 4: Simplify right side
    8,803.56x = 68,245,034.63
  5. Step 5: Solve for x
    x = 68,245,034.63/8,803.56
  6. Step 6: Final answer
    x = 7,751.98

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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.