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Finding the Fourth Proportional to 68,224.50, 93,467.91 and 65,667.74

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Solution

The fourth proportional to 68,224.50, 93,467.91 and 65,667.74 is: 89,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,224.50 : 93,467.91 = 65,667.74 : x
  2. Step 2: Convert to fraction form
    68,224.50/93,467.91 = 65,667.74/x
  3. Step 3: Cross multiply
    68,224.50x = 93,467.91 × 65,667.74
  4. Step 4: Simplify right side
    68,224.50x = 6,137,826,361.67
  5. Step 5: Solve for x
    x = 6,137,826,361.67/68,224.50
  6. Step 6: Final answer
    x = 89,965.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.