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Finding the Fourth Proportional to 14,895.18, 20,576.70 and 11,907.09

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Solution

The fourth proportional to 14,895.18, 20,576.70 and 11,907.09 is: 16,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,895.18 : 20,576.70 = 11,907.09 : x
  2. Step 2: Convert to fraction form
    14,895.18/20,576.70 = 11,907.09/x
  3. Step 3: Cross multiply
    14,895.18x = 20,576.70 × 11,907.09
  4. Step 4: Simplify right side
    14,895.18x = 245,008,618.80
  5. Step 5: Solve for x
    x = 245,008,618.80/14,895.18
  6. Step 6: Final answer
    x = 16,448.85

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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.