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Finding the Fourth Proportional to 8,876.66, 13,305.53 and 6,678.59

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Solution

The fourth proportional to 8,876.66, 13,305.53 and 6,678.59 is: 10,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.66 : 13,305.53 = 6,678.59 : x
  2. Step 2: Convert to fraction form
    8,876.66/13,305.53 = 6,678.59/x
  3. Step 3: Cross multiply
    8,876.66x = 13,305.53 × 6,678.59
  4. Step 4: Simplify right side
    8,876.66x = 88,862,129.77
  5. Step 5: Solve for x
    x = 88,862,129.77/8,876.66
  6. Step 6: Final answer
    x = 10,010.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.