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Finding the Fourth Proportional to 8,808.70, 12,156.00 and 4,829.88

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Solution

The fourth proportional to 8,808.70, 12,156.00 and 4,829.88 is: 6,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.70 : 12,156.00 = 4,829.88 : x
  2. Step 2: Convert to fraction form
    8,808.70/12,156.00 = 4,829.88/x
  3. Step 3: Cross multiply
    8,808.70x = 12,156.00 × 4,829.88
  4. Step 4: Simplify right side
    8,808.70x = 58,711,993.96
  5. Step 5: Solve for x
    x = 58,711,993.96/8,808.70
  6. Step 6: Final answer
    x = 6,665.23

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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.