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Finding the Fourth Proportional to 8,694.90, 11,998.08 and 5,337.86

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Solution

The fourth proportional to 8,694.90, 11,998.08 and 5,337.86 is: 7,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.90 : 11,998.08 = 5,337.86 : x
  2. Step 2: Convert to fraction form
    8,694.90/11,998.08 = 5,337.86/x
  3. Step 3: Cross multiply
    8,694.90x = 11,998.08 × 5,337.86
  4. Step 4: Simplify right side
    8,694.90x = 64,044,011.32
  5. Step 5: Solve for x
    x = 64,044,011.32/8,694.90
  6. Step 6: Final answer
    x = 7,365.70

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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.