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Finding the Fourth Proportional to 17,200.68, 25,801.02 and 13,759.80

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Solution

The fourth proportional to 17,200.68, 25,801.02 and 13,759.80 is: 20,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,200.68 : 25,801.02 = 13,759.80 : x
  2. Step 2: Convert to fraction form
    17,200.68/25,801.02 = 13,759.80/x
  3. Step 3: Cross multiply
    17,200.68x = 25,801.02 × 13,759.80
  4. Step 4: Simplify right side
    17,200.68x = 355,016,875.00
  5. Step 5: Solve for x
    x = 355,016,875.00/17,200.68
  6. Step 6: Final answer
    x = 20,639.70

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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.