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Finding the Fourth Proportional to 17,191.54, 25,788.63 and 7,330.87

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Solution

The fourth proportional to 17,191.54, 25,788.63 and 7,330.87 is: 10,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,191.54 : 25,788.63 = 7,330.87 : x
  2. Step 2: Convert to fraction form
    17,191.54/25,788.63 = 7,330.87/x
  3. Step 3: Cross multiply
    17,191.54x = 25,788.63 × 7,330.87
  4. Step 4: Simplify right side
    17,191.54x = 189,053,094.01
  5. Step 5: Solve for x
    x = 189,053,094.01/17,191.54
  6. Step 6: Final answer
    x = 10,996.87

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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.