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Finding the Fourth Proportional to 65,866.94, 90,887.90 and 37,570.94

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Solution

The fourth proportional to 65,866.94, 90,887.90 and 37,570.94 is: 51,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,866.94 : 90,887.90 = 37,570.94 : x
  2. Step 2: Convert to fraction form
    65,866.94/90,887.90 = 37,570.94/x
  3. Step 3: Cross multiply
    65,866.94x = 90,887.90 × 37,570.94
  4. Step 4: Simplify right side
    65,866.94x = 3,414,743,837.63
  5. Step 5: Solve for x
    x = 3,414,743,837.63/65,866.94
  6. Step 6: Final answer
    x = 51,843.06

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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.