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Finding the Fourth Proportional to 17,402.68, 26,108.34 and 7,021.72

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Solution

The fourth proportional to 17,402.68, 26,108.34 and 7,021.72 is: 10,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,402.68 : 26,108.34 = 7,021.72 : x
  2. Step 2: Convert to fraction form
    17,402.68/26,108.34 = 7,021.72/x
  3. Step 3: Cross multiply
    17,402.68x = 26,108.34 × 7,021.72
  4. Step 4: Simplify right side
    17,402.68x = 183,325,453.14
  5. Step 5: Solve for x
    x = 183,325,453.14/17,402.68
  6. Step 6: Final answer
    x = 10,534.32

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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.