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Finding the Fourth Proportional to 65,973.78, 91,042.62 and 37,675.62

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Solution

The fourth proportional to 65,973.78, 91,042.62 and 37,675.62 is: 51,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,973.78 : 91,042.62 = 37,675.62 : x
  2. Step 2: Convert to fraction form
    65,973.78/91,042.62 = 37,675.62/x
  3. Step 3: Cross multiply
    65,973.78x = 91,042.62 × 37,675.62
  4. Step 4: Simplify right side
    65,973.78x = 3,430,087,154.92
  5. Step 5: Solve for x
    x = 3,430,087,154.92/65,973.78
  6. Step 6: Final answer
    x = 51,991.67

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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.