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Finding the Fourth Proportional to 66,251.93, 91,430.03 and 37,963.08

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Solution

The fourth proportional to 66,251.93, 91,430.03 and 37,963.08 is: 52,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251.93 : 91,430.03 = 37,963.08 : x
  2. Step 2: Convert to fraction form
    66,251.93/91,430.03 = 37,963.08/x
  3. Step 3: Cross multiply
    66,251.93x = 91,430.03 × 37,963.08
  4. Step 4: Simplify right side
    66,251.93x = 3,470,965,638.20
  5. Step 5: Solve for x
    x = 3,470,965,638.20/66,251.93
  6. Step 6: Final answer
    x = 52,390.41

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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.