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Finding the Fourth Proportional to 61,812.84, 85,301.64 and 33,518.48

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Solution

The fourth proportional to 61,812.84, 85,301.64 and 33,518.48 is: 46,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,812.84 : 85,301.64 = 33,518.48 : x
  2. Step 2: Convert to fraction form
    61,812.84/85,301.64 = 33,518.48/x
  3. Step 3: Cross multiply
    61,812.84x = 85,301.64 × 33,518.48
  4. Step 4: Simplify right side
    61,812.84x = 2,859,181,314.31
  5. Step 5: Solve for x
    x = 2,859,181,314.31/61,812.84
  6. Step 6: Final answer
    x = 46,255.46

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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.