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Finding the Fourth Proportional to 42,003.80, 62,932.80 and 35,442.80

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Solution

The fourth proportional to 42,003.80, 62,932.80 and 35,442.80 is: 53,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,003.80 : 62,932.80 = 35,442.80 : x
  2. Step 2: Convert to fraction form
    42,003.80/62,932.80 = 35,442.80/x
  3. Step 3: Cross multiply
    42,003.80x = 62,932.80 × 35,442.80
  4. Step 4: Simplify right side
    42,003.80x = 2,230,514,643.84
  5. Step 5: Solve for x
    x = 2,230,514,643.84/42,003.80
  6. Step 6: Final answer
    x = 53,102.69

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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.