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Finding the Fourth Proportional to 65,788.76, 90,782.62 and 37,110.52

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Solution

The fourth proportional to 65,788.76, 90,782.62 and 37,110.52 is: 51,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.76 : 90,782.62 = 37,110.52 : x
  2. Step 2: Convert to fraction form
    65,788.76/90,782.62 = 37,110.52/x
  3. Step 3: Cross multiply
    65,788.76x = 90,782.62 × 37,110.52
  4. Step 4: Simplify right side
    65,788.76x = 3,368,990,235.16
  5. Step 5: Solve for x
    x = 3,368,990,235.16/65,788.76
  6. Step 6: Final answer
    x = 51,209.21

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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.