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Finding the Fourth Proportional to 71,756.01, 107,657.08 and 21,845.77

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Solution

The fourth proportional to 71,756.01, 107,657.08 and 21,845.77 is: 32,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,756.01 : 107,657.08 = 21,845.77 : x
  2. Step 2: Convert to fraction form
    71,756.01/107,657.08 = 21,845.77/x
  3. Step 3: Cross multiply
    71,756.01x = 107,657.08 × 21,845.77
  4. Step 4: Simplify right side
    71,756.01x = 2,351,851,484.79
  5. Step 5: Solve for x
    x = 2,351,851,484.79/71,756.01
  6. Step 6: Final answer
    x = 32,775.67

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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.