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Finding the Fourth Proportional to 63,804.70, 95,720.89 and 19,430.29

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Solution

The fourth proportional to 63,804.70, 95,720.89 and 19,430.29 is: 29,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,804.70 : 95,720.89 = 19,430.29 : x
  2. Step 2: Convert to fraction form
    63,804.70/95,720.89 = 19,430.29/x
  3. Step 3: Cross multiply
    63,804.70x = 95,720.89 × 19,430.29
  4. Step 4: Simplify right side
    63,804.70x = 1,859,884,651.76
  5. Step 5: Solve for x
    x = 1,859,884,651.76/63,804.70
  6. Step 6: Final answer
    x = 29,149.65

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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.