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Finding the Fourth Proportional to 8,753.77, 12,080.21 and 4,774.89

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Solution

The fourth proportional to 8,753.77, 12,080.21 and 4,774.89 is: 6,589.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.77 : 12,080.21 = 4,774.89 : x
  2. Step 2: Convert to fraction form
    8,753.77/12,080.21 = 4,774.89/x
  3. Step 3: Cross multiply
    8,753.77x = 12,080.21 × 4,774.89
  4. Step 4: Simplify right side
    8,753.77x = 57,681,673.93
  5. Step 5: Solve for x
    x = 57,681,673.93/8,753.77
  6. Step 6: Final answer
    x = 6,589.35

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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.