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Finding the Fourth Proportional to 65,788.92, 90,783.99 and 37,109.52

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Solution

The fourth proportional to 65,788.92, 90,783.99 and 37,109.52 is: 51,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.92 : 90,783.99 = 37,109.52 : x
  2. Step 2: Convert to fraction form
    65,788.92/90,783.99 = 37,109.52/x
  3. Step 3: Cross multiply
    65,788.92x = 90,783.99 × 37,109.52
  4. Step 4: Simplify right side
    65,788.92x = 3,368,950,292.58
  5. Step 5: Solve for x
    x = 3,368,950,292.58/65,788.92
  6. Step 6: Final answer
    x = 51,208.48

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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.