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Finding the Fourth Proportional to 8,776.67, 12,111.55 and 4,797.70

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Solution

The fourth proportional to 8,776.67, 12,111.55 and 4,797.70 is: 6,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.67 : 12,111.55 = 4,797.70 : x
  2. Step 2: Convert to fraction form
    8,776.67/12,111.55 = 4,797.70/x
  3. Step 3: Cross multiply
    8,776.67x = 12,111.55 × 4,797.70
  4. Step 4: Simplify right side
    8,776.67x = 58,107,554.66
  5. Step 5: Solve for x
    x = 58,107,554.66/8,776.67
  6. Step 6: Final answer
    x = 6,620.68

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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.