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Finding the Fourth Proportional to 67,679.85, 93,440.69 and 43,491.63

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Solution

The fourth proportional to 67,679.85, 93,440.69 and 43,491.63 is: 60,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.85 : 93,440.69 = 43,491.63 : x
  2. Step 2: Convert to fraction form
    67,679.85/93,440.69 = 43,491.63/x
  3. Step 3: Cross multiply
    67,679.85x = 93,440.69 × 43,491.63
  4. Step 4: Simplify right side
    67,679.85x = 4,063,888,212.46
  5. Step 5: Solve for x
    x = 4,063,888,212.46/67,679.85
  6. Step 6: Final answer
    x = 60,045.76

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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.