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Finding the Fourth Proportional to 8,776.28, 12,111.14 and 4,797.39

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Solution

The fourth proportional to 8,776.28, 12,111.14 and 4,797.39 is: 6,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.28 : 12,111.14 = 4,797.39 : x
  2. Step 2: Convert to fraction form
    8,776.28/12,111.14 = 4,797.39/x
  3. Step 3: Cross multiply
    8,776.28x = 12,111.14 × 4,797.39
  4. Step 4: Simplify right side
    8,776.28x = 58,101,837.94
  5. Step 5: Solve for x
    x = 58,101,837.94/8,776.28
  6. Step 6: Final answer
    x = 6,620.33

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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.