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Finding the Fourth Proportional to 40,599.84, 60,894.20 and 12,136.40

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Solution

The fourth proportional to 40,599.84, 60,894.20 and 12,136.40 is: 18,202.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,599.84 : 60,894.20 = 12,136.40 : x
  2. Step 2: Convert to fraction form
    40,599.84/60,894.20 = 12,136.40/x
  3. Step 3: Cross multiply
    40,599.84x = 60,894.20 × 12,136.40
  4. Step 4: Simplify right side
    40,599.84x = 739,036,368.88
  5. Step 5: Solve for x
    x = 739,036,368.88/40,599.84
  6. Step 6: Final answer
    x = 18,202.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.