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Finding the Fourth Proportional to 61,410.70, 92,116.07 and 21,965.45

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Solution

The fourth proportional to 61,410.70, 92,116.07 and 21,965.45 is: 32,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,410.70 : 92,116.07 = 21,965.45 : x
  2. Step 2: Convert to fraction form
    61,410.70/92,116.07 = 21,965.45/x
  3. Step 3: Cross multiply
    61,410.70x = 92,116.07 × 21,965.45
  4. Step 4: Simplify right side
    61,410.70x = 2,023,370,819.95
  5. Step 5: Solve for x
    x = 2,023,370,819.95/61,410.70
  6. Step 6: Final answer
    x = 32,948.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.