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Finding the Fourth Proportional to 63,963.90, 95,953.05 and 19,590.30

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Solution

The fourth proportional to 63,963.90, 95,953.05 and 19,590.30 is: 29,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,963.90 : 95,953.05 = 19,590.30 : x
  2. Step 2: Convert to fraction form
    63,963.90/95,953.05 = 19,590.30/x
  3. Step 3: Cross multiply
    63,963.90x = 95,953.05 × 19,590.30
  4. Step 4: Simplify right side
    63,963.90x = 1,879,749,035.42
  5. Step 5: Solve for x
    x = 1,879,749,035.42/63,963.90
  6. Step 6: Final answer
    x = 29,387.66

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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.