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Finding the Fourth Proportional to 67,776.75, 93,575.79 and 43,588.60

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Solution

The fourth proportional to 67,776.75, 93,575.79 and 43,588.60 is: 60,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,776.75 : 93,575.79 = 43,588.60 : x
  2. Step 2: Convert to fraction form
    67,776.75/93,575.79 = 43,588.60/x
  3. Step 3: Cross multiply
    67,776.75x = 93,575.79 × 43,588.60
  4. Step 4: Simplify right side
    67,776.75x = 4,078,837,446.05
  5. Step 5: Solve for x
    x = 4,078,837,446.05/67,776.75
  6. Step 6: Final answer
    x = 60,180.48

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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.