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Finding the Fourth Proportional to 8,701.91, 12,006.64 and 5,874.54

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Solution

The fourth proportional to 8,701.91, 12,006.64 and 5,874.54 is: 8,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.91 : 12,006.64 = 5,874.54 : x
  2. Step 2: Convert to fraction form
    8,701.91/12,006.64 = 5,874.54/x
  3. Step 3: Cross multiply
    8,701.91x = 12,006.64 × 5,874.54
  4. Step 4: Simplify right side
    8,701.91x = 70,533,486.95
  5. Step 5: Solve for x
    x = 70,533,486.95/8,701.91
  6. Step 6: Final answer
    x = 8,105.52

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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.