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Finding the Fourth Proportional to 65,987.73, 91,041.17 and 37,303.74

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Solution

The fourth proportional to 65,987.73, 91,041.17 and 37,303.74 is: 51,466.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,987.73 : 91,041.17 = 37,303.74 : x
  2. Step 2: Convert to fraction form
    65,987.73/91,041.17 = 37,303.74/x
  3. Step 3: Cross multiply
    65,987.73x = 91,041.17 × 37,303.74
  4. Step 4: Simplify right side
    65,987.73x = 3,396,175,948.46
  5. Step 5: Solve for x
    x = 3,396,175,948.46/65,987.73
  6. Step 6: Final answer
    x = 51,466.78

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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.