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Finding the Fourth Proportional to 67,857.52, 93,643.90 and 37,230.42

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Solution

The fourth proportional to 67,857.52, 93,643.90 and 37,230.42 is: 51,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,857.52 : 93,643.90 = 37,230.42 : x
  2. Step 2: Convert to fraction form
    67,857.52/93,643.90 = 37,230.42/x
  3. Step 3: Cross multiply
    67,857.52x = 93,643.90 × 37,230.42
  4. Step 4: Simplify right side
    67,857.52x = 3,486,401,727.44
  5. Step 5: Solve for x
    x = 3,486,401,727.44/67,857.52
  6. Step 6: Final answer
    x = 51,378.27

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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.