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Finding the Fourth Proportional to 55,215.40, 82,823.82 and 15,773.80

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Solution

The fourth proportional to 55,215.40, 82,823.82 and 15,773.80 is: 23,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.40 : 82,823.82 = 15,773.80 : x
  2. Step 2: Convert to fraction form
    55,215.40/82,823.82 = 15,773.80/x
  3. Step 3: Cross multiply
    55,215.40x = 82,823.82 × 15,773.80
  4. Step 4: Simplify right side
    55,215.40x = 1,306,446,371.92
  5. Step 5: Solve for x
    x = 1,306,446,371.92/55,215.40
  6. Step 6: Final answer
    x = 23,660.91

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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.