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Finding the Fourth Proportional to 63,690.80, 95,536.42 and 19,317.93

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Solution

The fourth proportional to 63,690.80, 95,536.42 and 19,317.93 is: 28,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,690.80 : 95,536.42 = 19,317.93 : x
  2. Step 2: Convert to fraction form
    63,690.80/95,536.42 = 19,317.93/x
  3. Step 3: Cross multiply
    63,690.80x = 95,536.42 × 19,317.93
  4. Step 4: Simplify right side
    63,690.80x = 1,845,565,874.01
  5. Step 5: Solve for x
    x = 1,845,565,874.01/63,690.80
  6. Step 6: Final answer
    x = 28,976.96

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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.