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Finding the Fourth Proportional to 8,899.83, 13,349.88 and 5,199.57

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Solution

The fourth proportional to 8,899.83, 13,349.88 and 5,199.57 is: 7,799.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.83 : 13,349.88 = 5,199.57 : x
  2. Step 2: Convert to fraction form
    8,899.83/13,349.88 = 5,199.57/x
  3. Step 3: Cross multiply
    8,899.83x = 13,349.88 × 5,199.57
  4. Step 4: Simplify right side
    8,899.83x = 69,413,635.55
  5. Step 5: Solve for x
    x = 69,413,635.55/8,899.83
  6. Step 6: Final answer
    x = 7,799.43

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1.5x scale

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.