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Finding the Fourth Proportional to 8,262.81, 12,391.58 and 2,714.87

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Solution

The fourth proportional to 8,262.81, 12,391.58 and 2,714.87 is: 4,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.81 : 12,391.58 = 2,714.87 : x
  2. Step 2: Convert to fraction form
    8,262.81/12,391.58 = 2,714.87/x
  3. Step 3: Cross multiply
    8,262.81x = 12,391.58 × 2,714.87
  4. Step 4: Simplify right side
    8,262.81x = 33,641,466.84
  5. Step 5: Solve for x
    x = 33,641,466.84/8,262.81
  6. Step 6: Final answer
    x = 4,071.43

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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.