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Finding the Fourth Proportional to 11,036.76, 16,555.14 and 7,764.48

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Solution

The fourth proportional to 11,036.76, 16,555.14 and 7,764.48 is: 11,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,036.76 : 16,555.14 = 7,764.48 : x
  2. Step 2: Convert to fraction form
    11,036.76/16,555.14 = 7,764.48/x
  3. Step 3: Cross multiply
    11,036.76x = 16,555.14 × 7,764.48
  4. Step 4: Simplify right side
    11,036.76x = 128,542,053.43
  5. Step 5: Solve for x
    x = 128,542,053.43/11,036.76
  6. Step 6: Final answer
    x = 11,646.72

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Similar ratio
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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.