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Finding the Fourth Proportional to 61,222.48, 84,477 and 36,068.56

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Solution

The fourth proportional to 61,222.48, 84,477 and 36,068.56 is: 49,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,222.48 : 84,477 = 36,068.56 : x
  2. Step 2: Convert to fraction form
    61,222.48/84,477 = 36,068.56/x
  3. Step 3: Cross multiply
    61,222.48x = 84,477 × 36,068.56
  4. Step 4: Simplify right side
    61,222.48x = 3,046,963,743.12
  5. Step 5: Solve for x
    x = 3,046,963,743.12/61,222.48
  6. Step 6: Final answer
    x = 49,768.71

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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.