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Finding the Fourth Proportional to 14,758.16, 20,365.96 and 8,134.16

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Solution

The fourth proportional to 14,758.16, 20,365.96 and 8,134.16 is: 11,224.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,758.16 : 20,365.96 = 8,134.16 : x
  2. Step 2: Convert to fraction form
    14,758.16/20,365.96 = 8,134.16/x
  3. Step 3: Cross multiply
    14,758.16x = 20,365.96 × 8,134.16
  4. Step 4: Simplify right side
    14,758.16x = 165,659,977.19
  5. Step 5: Solve for x
    x = 165,659,977.19/14,758.16
  6. Step 6: Final answer
    x = 11,224.98

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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.