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Finding the Fourth Proportional to 14,895.33, 20,555.52 and 8,181.01

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Solution

The fourth proportional to 14,895.33, 20,555.52 and 8,181.01 is: 11,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,895.33 : 20,555.52 = 8,181.01 : x
  2. Step 2: Convert to fraction form
    14,895.33/20,555.52 = 8,181.01/x
  3. Step 3: Cross multiply
    14,895.33x = 20,555.52 × 8,181.01
  4. Step 4: Simplify right side
    14,895.33x = 168,164,914.68
  5. Step 5: Solve for x
    x = 168,164,914.68/14,895.33
  6. Step 6: Final answer
    x = 11,289.77

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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.