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Finding the Fourth Proportional to 61,785.97, 85,262.35 and 33,491.05

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Solution

The fourth proportional to 61,785.97, 85,262.35 and 33,491.05 is: 46,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,785.97 : 85,262.35 = 33,491.05 : x
  2. Step 2: Convert to fraction form
    61,785.97/85,262.35 = 33,491.05/x
  3. Step 3: Cross multiply
    61,785.97x = 85,262.35 × 33,491.05
  4. Step 4: Simplify right side
    61,785.97x = 2,855,525,626.97
  5. Step 5: Solve for x
    x = 2,855,525,626.97/61,785.97
  6. Step 6: Final answer
    x = 46,216.41

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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.