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Finding the Fourth Proportional to 14,590.73, 20,132.99 and 8,216.99

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Solution

The fourth proportional to 14,590.73, 20,132.99 and 8,216.99 is: 11,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,590.73 : 20,132.99 = 8,216.99 : x
  2. Step 2: Convert to fraction form
    14,590.73/20,132.99 = 8,216.99/x
  3. Step 3: Cross multiply
    14,590.73x = 20,132.99 × 8,216.99
  4. Step 4: Simplify right side
    14,590.73x = 165,432,542.06
  5. Step 5: Solve for x
    x = 165,432,542.06/14,590.73
  6. Step 6: Final answer
    x = 11,338.19

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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.