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Finding the Fourth Proportional to 35,953.40, 53,921.46 and 18,414.20

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Solution

The fourth proportional to 35,953.40, 53,921.46 and 18,414.20 is: 27,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,953.40 : 53,921.46 = 18,414.20 : x
  2. Step 2: Convert to fraction form
    35,953.40/53,921.46 = 18,414.20/x
  3. Step 3: Cross multiply
    35,953.40x = 53,921.46 × 18,414.20
  4. Step 4: Simplify right side
    35,953.40x = 992,920,548.73
  5. Step 5: Solve for x
    x = 992,920,548.73/35,953.40
  6. Step 6: Final answer
    x = 27,616.87

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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.