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Finding the Fourth Proportional to 8,714.75, 13,068.90 and 3,166.74

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Solution

The fourth proportional to 8,714.75, 13,068.90 and 3,166.74 is: 4,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.75 : 13,068.90 = 3,166.74 : x
  2. Step 2: Convert to fraction form
    8,714.75/13,068.90 = 3,166.74/x
  3. Step 3: Cross multiply
    8,714.75x = 13,068.90 × 3,166.74
  4. Step 4: Simplify right side
    8,714.75x = 41,385,808.39
  5. Step 5: Solve for x
    x = 41,385,808.39/8,714.75
  6. Step 6: Final answer
    x = 4,748.94

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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.