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Finding the Fourth Proportional to 8,676.71, 11,973.89 and 4,697.79

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Solution

The fourth proportional to 8,676.71, 11,973.89 and 4,697.79 is: 6,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.71 : 11,973.89 = 4,697.79 : x
  2. Step 2: Convert to fraction form
    8,676.71/11,973.89 = 4,697.79/x
  3. Step 3: Cross multiply
    8,676.71x = 11,973.89 × 4,697.79
  4. Step 4: Simplify right side
    8,676.71x = 56,250,820.70
  5. Step 5: Solve for x
    x = 56,250,820.70/8,676.71
  6. Step 6: Final answer
    x = 6,482.97

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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.