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Finding the Fourth Proportional to 61,651.20, 85,078.44 and 33,356.76

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Solution

The fourth proportional to 61,651.20, 85,078.44 and 33,356.76 is: 46,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,651.20 : 85,078.44 = 33,356.76 : x
  2. Step 2: Convert to fraction form
    61,651.20/85,078.44 = 33,356.76/x
  3. Step 3: Cross multiply
    61,651.20x = 85,078.44 × 33,356.76
  4. Step 4: Simplify right side
    61,651.20x = 2,837,941,104.25
  5. Step 5: Solve for x
    x = 2,837,941,104.25/61,651.20
  6. Step 6: Final answer
    x = 46,032.21

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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.