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Finding the Fourth Proportional to 8,869.99, 13,310.15 and 4,924.55

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Solution

The fourth proportional to 8,869.99, 13,310.15 and 4,924.55 is: 7,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.99 : 13,310.15 = 4,924.55 : x
  2. Step 2: Convert to fraction form
    8,869.99/13,310.15 = 4,924.55/x
  3. Step 3: Cross multiply
    8,869.99x = 13,310.15 × 4,924.55
  4. Step 4: Simplify right side
    8,869.99x = 65,546,499.18
  5. Step 5: Solve for x
    x = 65,546,499.18/8,869.99
  6. Step 6: Final answer
    x = 7,389.69

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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.