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Finding the Fourth Proportional to 61,963.60, 85,510.29 and 33,669.28

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Solution

The fourth proportional to 61,963.60, 85,510.29 and 33,669.28 is: 46,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.60 : 85,510.29 = 33,669.28 : x
  2. Step 2: Convert to fraction form
    61,963.60/85,510.29 = 33,669.28/x
  3. Step 3: Cross multiply
    61,963.60x = 85,510.29 × 33,669.28
  4. Step 4: Simplify right side
    61,963.60x = 2,879,069,728.54
  5. Step 5: Solve for x
    x = 2,879,069,728.54/61,963.60
  6. Step 6: Final answer
    x = 46,463.89

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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.