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Finding the Fourth Proportional to 65,807.23, 90,813.99 and 37,132.98

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Solution

The fourth proportional to 65,807.23, 90,813.99 and 37,132.98 is: 51,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,807.23 : 90,813.99 = 37,132.98 : x
  2. Step 2: Convert to fraction form
    65,807.23/90,813.99 = 37,132.98/x
  3. Step 3: Cross multiply
    65,807.23x = 90,813.99 × 37,132.98
  4. Step 4: Simplify right side
    65,807.23x = 3,372,193,733.84
  5. Step 5: Solve for x
    x = 3,372,193,733.84/65,807.23
  6. Step 6: Final answer
    x = 51,243.52

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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.