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Finding the Fourth Proportional to 65,581.41, 90,491.06 and 36,897.09

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Solution

The fourth proportional to 65,581.41, 90,491.06 and 36,897.09 is: 50,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,581.41 : 90,491.06 = 36,897.09 : x
  2. Step 2: Convert to fraction form
    65,581.41/90,491.06 = 36,897.09/x
  3. Step 3: Cross multiply
    65,581.41x = 90,491.06 × 36,897.09
  4. Step 4: Simplify right side
    65,581.41x = 3,338,856,785.02
  5. Step 5: Solve for x
    x = 3,338,856,785.02/65,581.41
  6. Step 6: Final answer
    x = 50,911.63

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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.