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Finding the Fourth Proportional to 52,696.76, 72,722.94 and 31,488.32

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Solution

The fourth proportional to 52,696.76, 72,722.94 and 31,488.32 is: 43,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,696.76 : 72,722.94 = 31,488.32 : x
  2. Step 2: Convert to fraction form
    52,696.76/72,722.94 = 31,488.32/x
  3. Step 3: Cross multiply
    52,696.76x = 72,722.94 × 31,488.32
  4. Step 4: Simplify right side
    52,696.76x = 2,289,923,206.06
  5. Step 5: Solve for x
    x = 2,289,923,206.06/52,696.76
  6. Step 6: Final answer
    x = 43,454.72

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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.