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Finding the Fourth Proportional to 17,172.80, 25,713.12 and 10,237.76

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Solution

The fourth proportional to 17,172.80, 25,713.12 and 10,237.76 is: 15,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.80 : 25,713.12 = 10,237.76 : x
  2. Step 2: Convert to fraction form
    17,172.80/25,713.12 = 10,237.76/x
  3. Step 3: Cross multiply
    17,172.80x = 25,713.12 × 10,237.76
  4. Step 4: Simplify right side
    17,172.80x = 263,244,751.41
  5. Step 5: Solve for x
    x = 263,244,751.41/17,172.80
  6. Step 6: Final answer
    x = 15,329.17

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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.