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Finding the Fourth Proportional to 67,493.86, 93,142.51 and 39,199.55

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Solution

The fourth proportional to 67,493.86, 93,142.51 and 39,199.55 is: 54,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,493.86 : 93,142.51 = 39,199.55 : x
  2. Step 2: Convert to fraction form
    67,493.86/93,142.51 = 39,199.55/x
  3. Step 3: Cross multiply
    67,493.86x = 93,142.51 × 39,199.55
  4. Step 4: Simplify right side
    67,493.86x = 3,651,143,914.16
  5. Step 5: Solve for x
    x = 3,651,143,914.16/67,493.86
  6. Step 6: Final answer
    x = 54,095.94

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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.