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Finding the Fourth Proportional to 18,599.92, 27,908.80 and 11,578.10

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Solution

The fourth proportional to 18,599.92, 27,908.80 and 11,578.10 is: 17,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.92 : 27,908.80 = 11,578.10 : x
  2. Step 2: Convert to fraction form
    18,599.92/27,908.80 = 11,578.10/x
  3. Step 3: Cross multiply
    18,599.92x = 27,908.80 × 11,578.10
  4. Step 4: Simplify right side
    18,599.92x = 323,130,737.74
  5. Step 5: Solve for x
    x = 323,130,737.74/18,599.92
  6. Step 6: Final answer
    x = 17,372.70

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1.5x scale

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.