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Finding the Fourth Proportional to 63,412.30, 95,129.40 and 21,296.44

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Solution

The fourth proportional to 63,412.30, 95,129.40 and 21,296.44 is: 31,948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,412.30 : 95,129.40 = 21,296.44 : x
  2. Step 2: Convert to fraction form
    63,412.30/95,129.40 = 21,296.44/x
  3. Step 3: Cross multiply
    63,412.30x = 95,129.40 × 21,296.44
  4. Step 4: Simplify right side
    63,412.30x = 2,025,917,559.34
  5. Step 5: Solve for x
    x = 2,025,917,559.34/63,412.30
  6. Step 6: Final answer
    x = 31,948.34

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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.