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Finding the Fourth Proportional to 63,693.90, 95,541.08 and 19,321.02

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Solution

The fourth proportional to 63,693.90, 95,541.08 and 19,321.02 is: 28,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,693.90 : 95,541.08 = 19,321.02 : x
  2. Step 2: Convert to fraction form
    63,693.90/95,541.08 = 19,321.02/x
  3. Step 3: Cross multiply
    63,693.90x = 95,541.08 × 19,321.02
  4. Step 4: Simplify right side
    63,693.90x = 1,845,951,020.90
  5. Step 5: Solve for x
    x = 1,845,951,020.90/63,693.90
  6. Step 6: Final answer
    x = 28,981.60

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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.