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Finding the Fourth Proportional to 75,029.82, 112,420.13 and 52,796.54

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Solution

The fourth proportional to 75,029.82, 112,420.13 and 52,796.54 is: 79,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,029.82 : 112,420.13 = 52,796.54 : x
  2. Step 2: Convert to fraction form
    75,029.82/112,420.13 = 52,796.54/x
  3. Step 3: Cross multiply
    75,029.82x = 112,420.13 × 52,796.54
  4. Step 4: Simplify right side
    75,029.82x = 5,935,393,064.27
  5. Step 5: Solve for x
    x = 5,935,393,064.27/75,029.82
  6. Step 6: Final answer
    x = 79,107.12

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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.