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Finding the Fourth Proportional to 61,573.49, 84,969.71 and 34,715.76

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Solution

The fourth proportional to 61,573.49, 84,969.71 and 34,715.76 is: 47,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,573.49 : 84,969.71 = 34,715.76 : x
  2. Step 2: Convert to fraction form
    61,573.49/84,969.71 = 34,715.76/x
  3. Step 3: Cross multiply
    61,573.49x = 84,969.71 × 34,715.76
  4. Step 4: Simplify right side
    61,573.49x = 2,949,787,697.60
  5. Step 5: Solve for x
    x = 2,949,787,697.60/61,573.49
  6. Step 6: Final answer
    x = 47,906.78

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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.