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Finding the Fourth Proportional to 65,840.36, 90,859.01 and 35,625.01

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Solution

The fourth proportional to 65,840.36, 90,859.01 and 35,625.01 is: 49,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,840.36 : 90,859.01 = 35,625.01 : x
  2. Step 2: Convert to fraction form
    65,840.36/90,859.01 = 35,625.01/x
  3. Step 3: Cross multiply
    65,840.36x = 90,859.01 × 35,625.01
  4. Step 4: Simplify right side
    65,840.36x = 3,236,853,005.12
  5. Step 5: Solve for x
    x = 3,236,853,005.12/65,840.36
  6. Step 6: Final answer
    x = 49,162.14

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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.