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Finding the Fourth Proportional to 8,899.72, 13,343.10 and 4,277.32

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Solution

The fourth proportional to 8,899.72, 13,343.10 and 4,277.32 is: 6,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.72 : 13,343.10 = 4,277.32 : x
  2. Step 2: Convert to fraction form
    8,899.72/13,343.10 = 4,277.32/x
  3. Step 3: Cross multiply
    8,899.72x = 13,343.10 × 4,277.32
  4. Step 4: Simplify right side
    8,899.72x = 57,072,708.49
  5. Step 5: Solve for x
    x = 57,072,708.49/8,899.72
  6. Step 6: Final answer
    x = 6,412.87

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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.