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Finding the Fourth Proportional to 71,220.01, 106,798.85 and 33,790.76

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Solution

The fourth proportional to 71,220.01, 106,798.85 and 33,790.76 is: 50,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,220.01 : 106,798.85 = 33,790.76 : x
  2. Step 2: Convert to fraction form
    71,220.01/106,798.85 = 33,790.76/x
  3. Step 3: Cross multiply
    71,220.01x = 106,798.85 × 33,790.76
  4. Step 4: Simplify right side
    71,220.01x = 3,608,814,308.63
  5. Step 5: Solve for x
    x = 3,608,814,308.63/71,220.01
  6. Step 6: Final answer
    x = 50,671.35

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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.