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Finding the Fourth Proportional to 61,777.49, 92,665.22 and 19,660.12

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Solution

The fourth proportional to 61,777.49, 92,665.22 and 19,660.12 is: 29,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,777.49 : 92,665.22 = 19,660.12 : x
  2. Step 2: Convert to fraction form
    61,777.49/92,665.22 = 19,660.12/x
  3. Step 3: Cross multiply
    61,777.49x = 92,665.22 × 19,660.12
  4. Step 4: Simplify right side
    61,777.49x = 1,821,809,015.06
  5. Step 5: Solve for x
    x = 1,821,809,015.06/61,777.49
  6. Step 6: Final answer
    x = 29,489.85

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1.5x scale

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.