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Finding the Fourth Proportional to 14,866.56, 20,515.14 and 8,150.94

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Solution

The fourth proportional to 14,866.56, 20,515.14 and 8,150.94 is: 11,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,866.56 : 20,515.14 = 8,150.94 : x
  2. Step 2: Convert to fraction form
    14,866.56/20,515.14 = 8,150.94/x
  3. Step 3: Cross multiply
    14,866.56x = 20,515.14 × 8,150.94
  4. Step 4: Simplify right side
    14,866.56x = 167,217,675.23
  5. Step 5: Solve for x
    x = 167,217,675.23/14,866.56
  6. Step 6: Final answer
    x = 11,247.91

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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.