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Finding the Fourth Proportional to 35,299.20, 48,735.70 and 21,884.70

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Solution

The fourth proportional to 35,299.20, 48,735.70 and 21,884.70 is: 30,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,299.20 : 48,735.70 = 21,884.70 : x
  2. Step 2: Convert to fraction form
    35,299.20/48,735.70 = 21,884.70/x
  3. Step 3: Cross multiply
    35,299.20x = 48,735.70 × 21,884.70
  4. Step 4: Simplify right side
    35,299.20x = 1,066,566,173.79
  5. Step 5: Solve for x
    x = 1,066,566,173.79/35,299.20
  6. Step 6: Final answer
    x = 30,215.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.