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Finding the Fourth Proportional to 61,564.71, 84,959.28 and 33,270.39

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Solution

The fourth proportional to 61,564.71, 84,959.28 and 33,270.39 is: 45,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,564.71 : 84,959.28 = 33,270.39 : x
  2. Step 2: Convert to fraction form
    61,564.71/84,959.28 = 33,270.39/x
  3. Step 3: Cross multiply
    61,564.71x = 84,959.28 × 33,270.39
  4. Step 4: Simplify right side
    61,564.71x = 2,826,628,379.72
  5. Step 5: Solve for x
    x = 2,826,628,379.72/61,564.71
  6. Step 6: Final answer
    x = 45,913.13

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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.