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Finding the Fourth Proportional to 55,291, 76,275.30 and 37,392.28

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Solution

The fourth proportional to 55,291, 76,275.30 and 37,392.28 is: 51,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291 : 76,275.30 = 37,392.28 : x
  2. Step 2: Convert to fraction form
    55,291/76,275.30 = 37,392.28/x
  3. Step 3: Cross multiply
    55,291x = 76,275.30 × 37,392.28
  4. Step 4: Simplify right side
    55,291x = 2,852,107,374.68
  5. Step 5: Solve for x
    x = 2,852,107,374.68/55,291
  6. Step 6: Final answer
    x = 51,583.57

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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.