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Finding the Fourth Proportional to 71,353.05, 107,051.17 and 26,993.40

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Solution

The fourth proportional to 71,353.05, 107,051.17 and 26,993.40 is: 40,498.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.05 : 107,051.17 = 26,993.40 : x
  2. Step 2: Convert to fraction form
    71,353.05/107,051.17 = 26,993.40/x
  3. Step 3: Cross multiply
    71,353.05x = 107,051.17 × 26,993.40
  4. Step 4: Simplify right side
    71,353.05x = 2,889,675,052.28
  5. Step 5: Solve for x
    x = 2,889,675,052.28/71,353.05
  6. Step 6: Final answer
    x = 40,498.27

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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.