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Finding the Fourth Proportional to 14,723.10, 20,317.68 and 8,008.65

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Solution

The fourth proportional to 14,723.10, 20,317.68 and 8,008.65 is: 11,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.10 : 20,317.68 = 8,008.65 : x
  2. Step 2: Convert to fraction form
    14,723.10/20,317.68 = 8,008.65/x
  3. Step 3: Cross multiply
    14,723.10x = 20,317.68 × 8,008.65
  4. Step 4: Simplify right side
    14,723.10x = 162,717,187.93
  5. Step 5: Solve for x
    x = 162,717,187.93/14,723.10
  6. Step 6: Final answer
    x = 11,051.83

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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.