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Finding the Fourth Proportional to 63,347.16, 87,393.72 and 36,475.28

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Solution

The fourth proportional to 63,347.16, 87,393.72 and 36,475.28 is: 50,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,347.16 : 87,393.72 = 36,475.28 : x
  2. Step 2: Convert to fraction form
    63,347.16/87,393.72 = 36,475.28/x
  3. Step 3: Cross multiply
    63,347.16x = 87,393.72 × 36,475.28
  4. Step 4: Simplify right side
    63,347.16x = 3,187,710,407.24
  5. Step 5: Solve for x
    x = 3,187,710,407.24/63,347.16
  6. Step 6: Final answer
    x = 50,321.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.