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Finding the Fourth Proportional to 63,989.46, 95,999.31 and 28,929.06

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Solution

The fourth proportional to 63,989.46, 95,999.31 and 28,929.06 is: 43,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.46 : 95,999.31 = 28,929.06 : x
  2. Step 2: Convert to fraction form
    63,989.46/95,999.31 = 28,929.06/x
  3. Step 3: Cross multiply
    63,989.46x = 95,999.31 × 28,929.06
  4. Step 4: Simplify right side
    63,989.46x = 2,777,169,798.95
  5. Step 5: Solve for x
    x = 2,777,169,798.95/63,989.46
  6. Step 6: Final answer
    x = 43,400.43

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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.