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Finding the Fourth Proportional to 8,817.66, 12,174.12 and 5,838.48

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Solution

The fourth proportional to 8,817.66, 12,174.12 and 5,838.48 is: 8,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.66 : 12,174.12 = 5,838.48 : x
  2. Step 2: Convert to fraction form
    8,817.66/12,174.12 = 5,838.48/x
  3. Step 3: Cross multiply
    8,817.66x = 12,174.12 × 5,838.48
  4. Step 4: Simplify right side
    8,817.66x = 71,078,356.14
  5. Step 5: Solve for x
    x = 71,078,356.14/8,817.66
  6. Step 6: Final answer
    x = 8,060.91

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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.