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Finding the Fourth Proportional to 63,275.66, 87,317.70 and 36,399.86

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Solution

The fourth proportional to 63,275.66, 87,317.70 and 36,399.86 is: 50,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,275.66 : 87,317.70 = 36,399.86 : x
  2. Step 2: Convert to fraction form
    63,275.66/87,317.70 = 36,399.86/x
  3. Step 3: Cross multiply
    63,275.66x = 87,317.70 × 36,399.86
  4. Step 4: Simplify right side
    63,275.66x = 3,178,352,055.52
  5. Step 5: Solve for x
    x = 3,178,352,055.52/63,275.66
  6. Step 6: Final answer
    x = 50,230.25

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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.