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Finding the Fourth Proportional to 71,998.48, 107,923.80 and 34,503.76

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Solution

The fourth proportional to 71,998.48, 107,923.80 and 34,503.76 is: 51,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,998.48 : 107,923.80 = 34,503.76 : x
  2. Step 2: Convert to fraction form
    71,998.48/107,923.80 = 34,503.76/x
  3. Step 3: Cross multiply
    71,998.48x = 107,923.80 × 34,503.76
  4. Step 4: Simplify right side
    71,998.48x = 3,723,776,893.49
  5. Step 5: Solve for x
    x = 3,723,776,893.49/71,998.48
  6. Step 6: Final answer
    x = 51,720.22

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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.