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Finding the Fourth Proportional to 14,959.87, 20,654.52 and 11,550.68

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Solution

The fourth proportional to 14,959.87, 20,654.52 and 11,550.68 is: 15,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.87 : 20,654.52 = 11,550.68 : x
  2. Step 2: Convert to fraction form
    14,959.87/20,654.52 = 11,550.68/x
  3. Step 3: Cross multiply
    14,959.87x = 20,654.52 × 11,550.68
  4. Step 4: Simplify right side
    14,959.87x = 238,573,647.80
  5. Step 5: Solve for x
    x = 238,573,647.80/14,959.87
  6. Step 6: Final answer
    x = 15,947.58

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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.