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Finding the Fourth Proportional to 65,940.68, 90,998.01 and 35,726.77

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Solution

The fourth proportional to 65,940.68, 90,998.01 and 35,726.77 is: 49,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,940.68 : 90,998.01 = 35,726.77 : x
  2. Step 2: Convert to fraction form
    65,940.68/90,998.01 = 35,726.77/x
  3. Step 3: Cross multiply
    65,940.68x = 90,998.01 × 35,726.77
  4. Step 4: Simplify right side
    65,940.68x = 3,251,064,746.23
  5. Step 5: Solve for x
    x = 3,251,064,746.23/65,940.68
  6. Step 6: Final answer
    x = 49,302.87

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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.