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Finding the Fourth Proportional to 70,220.21, 105,308.89 and 36,922.21

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Solution

The fourth proportional to 70,220.21, 105,308.89 and 36,922.21 is: 55,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,220.21 : 105,308.89 = 36,922.21 : x
  2. Step 2: Convert to fraction form
    70,220.21/105,308.89 = 36,922.21/x
  3. Step 3: Cross multiply
    70,220.21x = 105,308.89 × 36,922.21
  4. Step 4: Simplify right side
    70,220.21x = 3,888,236,240.29
  5. Step 5: Solve for x
    x = 3,888,236,240.29/70,220.21
  6. Step 6: Final answer
    x = 55,372.04

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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.