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Finding the Fourth Proportional to 8,443.73, 11,651.09 and 5,085.87

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Solution

The fourth proportional to 8,443.73, 11,651.09 and 5,085.87 is: 7,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.73 : 11,651.09 = 5,085.87 : x
  2. Step 2: Convert to fraction form
    8,443.73/11,651.09 = 5,085.87/x
  3. Step 3: Cross multiply
    8,443.73x = 11,651.09 × 5,085.87
  4. Step 4: Simplify right side
    8,443.73x = 59,255,903.67
  5. Step 5: Solve for x
    x = 59,255,903.67/8,443.73
  6. Step 6: Final answer
    x = 7,017.74

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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.