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Finding the Fourth Proportional to 66,352.41, 91,564.95 and 36,138.27

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Solution

The fourth proportional to 66,352.41, 91,564.95 and 36,138.27 is: 49,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.41 : 91,564.95 = 36,138.27 : x
  2. Step 2: Convert to fraction form
    66,352.41/91,564.95 = 36,138.27/x
  3. Step 3: Cross multiply
    66,352.41x = 91,564.95 × 36,138.27
  4. Step 4: Simplify right side
    66,352.41x = 3,308,998,885.64
  5. Step 5: Solve for x
    x = 3,308,998,885.64/66,352.41
  6. Step 6: Final answer
    x = 49,870.06

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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.