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Finding the Fourth Proportional to 63,765.31, 95,627.54 and 21,061.23

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Solution

The fourth proportional to 63,765.31, 95,627.54 and 21,061.23 is: 31,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,765.31 : 95,627.54 = 21,061.23 : x
  2. Step 2: Convert to fraction form
    63,765.31/95,627.54 = 21,061.23/x
  3. Step 3: Cross multiply
    63,765.31x = 95,627.54 × 21,061.23
  4. Step 4: Simplify right side
    63,765.31x = 2,014,033,666.93
  5. Step 5: Solve for x
    x = 2,014,033,666.93/63,765.31
  6. Step 6: Final answer
    x = 31,585.10

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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.