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Finding the Fourth Proportional to 65,939, 98,920.90 and 26,499.24

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Solution

The fourth proportional to 65,939, 98,920.90 and 26,499.24 is: 39,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,939 : 98,920.90 = 26,499.24 : x
  2. Step 2: Convert to fraction form
    65,939/98,920.90 = 26,499.24/x
  3. Step 3: Cross multiply
    65,939x = 98,920.90 × 26,499.24
  4. Step 4: Simplify right side
    65,939x = 2,621,328,670.12
  5. Step 5: Solve for x
    x = 2,621,328,670.12/65,939
  6. Step 6: Final answer
    x = 39,753.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.