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Finding the Fourth Proportional to 35,442.80, 53,151.40 and 17,906.80

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Solution

The fourth proportional to 35,442.80, 53,151.40 and 17,906.80 is: 26,853.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,442.80 : 53,151.40 = 17,906.80 : x
  2. Step 2: Convert to fraction form
    35,442.80/53,151.40 = 17,906.80/x
  3. Step 3: Cross multiply
    35,442.80x = 53,151.40 × 17,906.80
  4. Step 4: Simplify right side
    35,442.80x = 951,771,489.52
  5. Step 5: Solve for x
    x = 951,771,489.52/35,442.80
  6. Step 6: Final answer
    x = 26,853.73

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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.