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Finding the Fourth Proportional to 61,119.97, 84,369.45 and 40,969.50

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Solution

The fourth proportional to 61,119.97, 84,369.45 and 40,969.50 is: 56,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,119.97 : 84,369.45 = 40,969.50 : x
  2. Step 2: Convert to fraction form
    61,119.97/84,369.45 = 40,969.50/x
  3. Step 3: Cross multiply
    61,119.97x = 84,369.45 × 40,969.50
  4. Step 4: Simplify right side
    61,119.97x = 3,456,573,788.57
  5. Step 5: Solve for x
    x = 3,456,573,788.57/61,119.97
  6. Step 6: Final answer
    x = 56,553.92

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1.5x scale

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.