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Finding the Fourth Proportional to 17,353.31, 26,009.13 and 7,980.42

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Solution

The fourth proportional to 17,353.31, 26,009.13 and 7,980.42 is: 11,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,353.31 : 26,009.13 = 7,980.42 : x
  2. Step 2: Convert to fraction form
    17,353.31/26,009.13 = 7,980.42/x
  3. Step 3: Cross multiply
    17,353.31x = 26,009.13 × 7,980.42
  4. Step 4: Simplify right side
    17,353.31x = 207,563,841.36
  5. Step 5: Solve for x
    x = 207,563,841.36/17,353.31
  6. Step 6: Final answer
    x = 11,961.05

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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.