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Finding the Fourth Proportional to 65,754.51, 90,739.40 and 37,073.92

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Solution

The fourth proportional to 65,754.51, 90,739.40 and 37,073.92 is: 51,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,754.51 : 90,739.40 = 37,073.92 : x
  2. Step 2: Convert to fraction form
    65,754.51/90,739.40 = 37,073.92/x
  3. Step 3: Cross multiply
    65,754.51x = 90,739.40 × 37,073.92
  4. Step 4: Simplify right side
    65,754.51x = 3,364,064,617.38
  5. Step 5: Solve for x
    x = 3,364,064,617.38/65,754.51
  6. Step 6: Final answer
    x = 51,160.98

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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.