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Finding the Fourth Proportional to 63,491.64, 87,600.72 and 50,021.13

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Solution

The fourth proportional to 63,491.64, 87,600.72 and 50,021.13 is: 69,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,491.64 : 87,600.72 = 50,021.13 : x
  2. Step 2: Convert to fraction form
    63,491.64/87,600.72 = 50,021.13/x
  3. Step 3: Cross multiply
    63,491.64x = 87,600.72 × 50,021.13
  4. Step 4: Simplify right side
    63,491.64x = 4,381,887,003.21
  5. Step 5: Solve for x
    x = 4,381,887,003.21/63,491.64
  6. Step 6: Final answer
    x = 69,015.18

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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.