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Finding the Fourth Proportional to 60,202.67, 90,307.85 and 20,220.03

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Solution

The fourth proportional to 60,202.67, 90,307.85 and 20,220.03 is: 30,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,202.67 : 90,307.85 = 20,220.03 : x
  2. Step 2: Convert to fraction form
    60,202.67/90,307.85 = 20,220.03/x
  3. Step 3: Cross multiply
    60,202.67x = 90,307.85 × 20,220.03
  4. Step 4: Simplify right side
    60,202.67x = 1,826,027,335.14
  5. Step 5: Solve for x
    x = 1,826,027,335.14/60,202.67
  6. Step 6: Final answer
    x = 30,331.34

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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.