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Finding the Fourth Proportional to 65,945.34, 90,999.03 and 37,267.50

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Solution

The fourth proportional to 65,945.34, 90,999.03 and 37,267.50 is: 51,426.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945.34 : 90,999.03 = 37,267.50 : x
  2. Step 2: Convert to fraction form
    65,945.34/90,999.03 = 37,267.50/x
  3. Step 3: Cross multiply
    65,945.34x = 90,999.03 × 37,267.50
  4. Step 4: Simplify right side
    65,945.34x = 3,391,306,350.53
  5. Step 5: Solve for x
    x = 3,391,306,350.53/65,945.34
  6. Step 6: Final answer
    x = 51,426.02

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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.