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Finding the Fourth Proportional to 61,515.45, 84,893.06 and 34,656.46

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Solution

The fourth proportional to 61,515.45, 84,893.06 and 34,656.46 is: 47,826.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.45 : 84,893.06 = 34,656.46 : x
  2. Step 2: Convert to fraction form
    61,515.45/84,893.06 = 34,656.46/x
  3. Step 3: Cross multiply
    61,515.45x = 84,893.06 × 34,656.46
  4. Step 4: Simplify right side
    61,515.45x = 2,942,092,812.58
  5. Step 5: Solve for x
    x = 2,942,092,812.58/61,515.45
  6. Step 6: Final answer
    x = 47,826.89

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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.