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Finding the Fourth Proportional to 61,874.13, 85,386.51 and 33,579.81

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Solution

The fourth proportional to 61,874.13, 85,386.51 and 33,579.81 is: 46,340.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,874.13 : 85,386.51 = 33,579.81 : x
  2. Step 2: Convert to fraction form
    61,874.13/85,386.51 = 33,579.81/x
  3. Step 3: Cross multiply
    61,874.13x = 85,386.51 × 33,579.81
  4. Step 4: Simplify right side
    61,874.13x = 2,867,262,782.36
  5. Step 5: Solve for x
    x = 2,867,262,782.36/61,874.13
  6. Step 6: Final answer
    x = 46,340.25

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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.