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Finding the Fourth Proportional to 23,641.79, 32,639.00 and 15,694.88

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Solution

The fourth proportional to 23,641.79, 32,639.00 and 15,694.88 is: 21,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,641.79 : 32,639.00 = 15,694.88 : x
  2. Step 2: Convert to fraction form
    23,641.79/32,639.00 = 15,694.88/x
  3. Step 3: Cross multiply
    23,641.79x = 32,639.00 × 15,694.88
  4. Step 4: Simplify right side
    23,641.79x = 512,265,109.85
  5. Step 5: Solve for x
    x = 512,265,109.85/23,641.79
  6. Step 6: Final answer
    x = 21,667.78

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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.