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Finding the Fourth Proportional to 17,009.90, 25,510.95 and 6,481.11

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Solution

The fourth proportional to 17,009.90, 25,510.95 and 6,481.11 is: 9,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,009.90 : 25,510.95 = 6,481.11 : x
  2. Step 2: Convert to fraction form
    17,009.90/25,510.95 = 6,481.11/x
  3. Step 3: Cross multiply
    17,009.90x = 25,510.95 × 6,481.11
  4. Step 4: Simplify right side
    17,009.90x = 165,339,368.82
  5. Step 5: Solve for x
    x = 165,339,368.82/17,009.90
  6. Step 6: Final answer
    x = 9,720.19

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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.