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Finding the Fourth Proportional to 58,651.86, 80,914.23 and 39,247.50

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Solution

The fourth proportional to 58,651.86, 80,914.23 and 39,247.50 is: 54,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,651.86 : 80,914.23 = 39,247.50 : x
  2. Step 2: Convert to fraction form
    58,651.86/80,914.23 = 39,247.50/x
  3. Step 3: Cross multiply
    58,651.86x = 80,914.23 × 39,247.50
  4. Step 4: Simplify right side
    58,651.86x = 3,175,681,241.93
  5. Step 5: Solve for x
    x = 3,175,681,241.93/58,651.86
  6. Step 6: Final answer
    x = 54,144.60

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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.