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Finding the Fourth Proportional to 18,599.82, 27,866.90 and 9,815.36

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Solution

The fourth proportional to 18,599.82, 27,866.90 and 9,815.36 is: 14,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.82 : 27,866.90 = 9,815.36 : x
  2. Step 2: Convert to fraction form
    18,599.82/27,866.90 = 9,815.36/x
  3. Step 3: Cross multiply
    18,599.82x = 27,866.90 × 9,815.36
  4. Step 4: Simplify right side
    18,599.82x = 273,523,655.58
  5. Step 5: Solve for x
    x = 273,523,655.58/18,599.82
  6. Step 6: Final answer
    x = 14,705.72

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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.