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Finding the Fourth Proportional to 71,762.96, 107,649.96 and 21,847.34

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Solution

The fourth proportional to 71,762.96, 107,649.96 and 21,847.34 is: 32,772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,762.96 : 107,649.96 = 21,847.34 : x
  2. Step 2: Convert to fraction form
    71,762.96/107,649.96 = 21,847.34/x
  3. Step 3: Cross multiply
    71,762.96x = 107,649.96 × 21,847.34
  4. Step 4: Simplify right side
    71,762.96x = 2,351,865,277.11
  5. Step 5: Solve for x
    x = 2,351,865,277.11/71,762.96
  6. Step 6: Final answer
    x = 32,772.69

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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.