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Finding the Fourth Proportional to 8,620.93, 11,898.27 and 8,058.12

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Solution

The fourth proportional to 8,620.93, 11,898.27 and 8,058.12 is: 11,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.93 : 11,898.27 = 8,058.12 : x
  2. Step 2: Convert to fraction form
    8,620.93/11,898.27 = 8,058.12/x
  3. Step 3: Cross multiply
    8,620.93x = 11,898.27 × 8,058.12
  4. Step 4: Simplify right side
    8,620.93x = 95,877,687.45
  5. Step 5: Solve for x
    x = 95,877,687.45/8,620.93
  6. Step 6: Final answer
    x = 11,121.50

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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.