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Finding the Fourth Proportional to 65,950.15, 91,015.67 and 37,259.86

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Solution

The fourth proportional to 65,950.15, 91,015.67 and 37,259.86 is: 51,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,950.15 : 91,015.67 = 37,259.86 : x
  2. Step 2: Convert to fraction form
    65,950.15/91,015.67 = 37,259.86/x
  3. Step 3: Cross multiply
    65,950.15x = 91,015.67 × 37,259.86
  4. Step 4: Simplify right side
    65,950.15x = 3,391,231,122.01
  5. Step 5: Solve for x
    x = 3,391,231,122.01/65,950.15
  6. Step 6: Final answer
    x = 51,421.13

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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.