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Finding the Fourth Proportional to 65,206.58, 89,987.22 and 36,911.66

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Solution

The fourth proportional to 65,206.58, 89,987.22 and 36,911.66 is: 50,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,206.58 : 89,987.22 = 36,911.66 : x
  2. Step 2: Convert to fraction form
    65,206.58/89,987.22 = 36,911.66/x
  3. Step 3: Cross multiply
    65,206.58x = 89,987.22 × 36,911.66
  4. Step 4: Simplify right side
    65,206.58x = 3,321,577,668.99
  5. Step 5: Solve for x
    x = 3,321,577,668.99/65,206.58
  6. Step 6: Final answer
    x = 50,939.30

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1.5x scale

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.