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Finding the Fourth Proportional to 63,357.87, 95,057.90 and 21,242.13

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Solution

The fourth proportional to 63,357.87, 95,057.90 and 21,242.13 is: 31,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,357.87 : 95,057.90 = 21,242.13 : x
  2. Step 2: Convert to fraction form
    63,357.87/95,057.90 = 21,242.13/x
  3. Step 3: Cross multiply
    63,357.87x = 95,057.90 × 21,242.13
  4. Step 4: Simplify right side
    63,357.87x = 2,019,232,269.33
  5. Step 5: Solve for x
    x = 2,019,232,269.33/63,357.87
  6. Step 6: Final answer
    x = 31,870.27

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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.