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Finding the Fourth Proportional to 35,989.79, 49,665.89 and 20,074.24

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Solution

The fourth proportional to 35,989.79, 49,665.89 and 20,074.24 is: 27,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,989.79 : 49,665.89 = 20,074.24 : x
  2. Step 2: Convert to fraction form
    35,989.79/49,665.89 = 20,074.24/x
  3. Step 3: Cross multiply
    35,989.79x = 49,665.89 × 20,074.24
  4. Step 4: Simplify right side
    35,989.79x = 997,004,921.69
  5. Step 5: Solve for x
    x = 997,004,921.69/35,989.79
  6. Step 6: Final answer
    x = 27,702.44

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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.