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Finding the Fourth Proportional to 52,291.99, 72,163.11 and 28,418.14

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Solution

The fourth proportional to 52,291.99, 72,163.11 and 28,418.14 is: 39,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,291.99 : 72,163.11 = 28,418.14 : x
  2. Step 2: Convert to fraction form
    52,291.99/72,163.11 = 28,418.14/x
  3. Step 3: Cross multiply
    52,291.99x = 72,163.11 × 28,418.14
  4. Step 4: Simplify right side
    52,291.99x = 2,050,741,362.82
  5. Step 5: Solve for x
    x = 2,050,741,362.82/52,291.99
  6. Step 6: Final answer
    x = 39,217.12

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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.