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Finding the Fourth Proportional to 17,242.88, 23,795.20 and 9,790.88

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Solution

The fourth proportional to 17,242.88, 23,795.20 and 9,790.88 is: 13,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,242.88 : 23,795.20 = 9,790.88 : x
  2. Step 2: Convert to fraction form
    17,242.88/23,795.20 = 9,790.88/x
  3. Step 3: Cross multiply
    17,242.88x = 23,795.20 × 9,790.88
  4. Step 4: Simplify right side
    17,242.88x = 232,975,947.78
  5. Step 5: Solve for x
    x = 232,975,947.78/17,242.88
  6. Step 6: Final answer
    x = 13,511.43

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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.