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Finding the Fourth Proportional to 63,393.75, 95,075.21 and 21,262.91

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Solution

The fourth proportional to 63,393.75, 95,075.21 and 21,262.91 is: 31,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,393.75 : 95,075.21 = 21,262.91 : x
  2. Step 2: Convert to fraction form
    63,393.75/95,075.21 = 21,262.91/x
  3. Step 3: Cross multiply
    63,393.75x = 95,075.21 × 21,262.91
  4. Step 4: Simplify right side
    63,393.75x = 2,021,575,497.12
  5. Step 5: Solve for x
    x = 2,021,575,497.12/63,393.75
  6. Step 6: Final answer
    x = 31,889.19

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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.