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Finding the Fourth Proportional to 8,676.55, 13,005.51 and 3,748.51

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Solution

The fourth proportional to 8,676.55, 13,005.51 and 3,748.51 is: 5,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.55 : 13,005.51 = 3,748.51 : x
  2. Step 2: Convert to fraction form
    8,676.55/13,005.51 = 3,748.51/x
  3. Step 3: Cross multiply
    8,676.55x = 13,005.51 × 3,748.51
  4. Step 4: Simplify right side
    8,676.55x = 48,751,284.29
  5. Step 5: Solve for x
    x = 48,751,284.29/8,676.55
  6. Step 6: Final answer
    x = 5,618.74

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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.