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Finding the Fourth Proportional to 52,695.53, 72,722.49 and 31,197.61

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Solution

The fourth proportional to 52,695.53, 72,722.49 and 31,197.61 is: 43,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,695.53 : 72,722.49 = 31,197.61 : x
  2. Step 2: Convert to fraction form
    52,695.53/72,722.49 = 31,197.61/x
  3. Step 3: Cross multiply
    52,695.53x = 72,722.49 × 31,197.61
  4. Step 4: Simplify right side
    52,695.53x = 2,268,768,030.65
  5. Step 5: Solve for x
    x = 2,268,768,030.65/52,695.53
  6. Step 6: Final answer
    x = 43,054.28

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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.