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Finding the Fourth Proportional to 8,671.96, 11,972.46 and 5,693.01

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Solution

The fourth proportional to 8,671.96, 11,972.46 and 5,693.01 is: 7,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.96 : 11,972.46 = 5,693.01 : x
  2. Step 2: Convert to fraction form
    8,671.96/11,972.46 = 5,693.01/x
  3. Step 3: Cross multiply
    8,671.96x = 11,972.46 × 5,693.01
  4. Step 4: Simplify right side
    8,671.96x = 68,159,274.64
  5. Step 5: Solve for x
    x = 68,159,274.64/8,671.96
  6. Step 6: Final answer
    x = 7,859.73

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1.5x scale

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.