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Finding the Fourth Proportional to 68,616.62, 94,690.32 and 38,401.58

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Solution

The fourth proportional to 68,616.62, 94,690.32 and 38,401.58 is: 52,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,616.62 : 94,690.32 = 38,401.58 : x
  2. Step 2: Convert to fraction form
    68,616.62/94,690.32 = 38,401.58/x
  3. Step 3: Cross multiply
    68,616.62x = 94,690.32 × 38,401.58
  4. Step 4: Simplify right side
    68,616.62x = 3,636,257,898.71
  5. Step 5: Solve for x
    x = 3,636,257,898.71/68,616.62
  6. Step 6: Final answer
    x = 52,993.84

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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.