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Finding the Fourth Proportional to 61,573.61, 84,969.88 and 34,715.88

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Solution

The fourth proportional to 61,573.61, 84,969.88 and 34,715.88 is: 47,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,573.61 : 84,969.88 = 34,715.88 : x
  2. Step 2: Convert to fraction form
    61,573.61/84,969.88 = 34,715.88/x
  3. Step 3: Cross multiply
    61,573.61x = 84,969.88 × 34,715.88
  4. Step 4: Simplify right side
    61,573.61x = 2,949,804,157.69
  5. Step 5: Solve for x
    x = 2,949,804,157.69/61,573.61
  6. Step 6: Final answer
    x = 47,906.95

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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.