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Finding the Fourth Proportional to 16,842.81, 25,266.96 and 7,486.05

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Solution

The fourth proportional to 16,842.81, 25,266.96 and 7,486.05 is: 11,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,842.81 : 25,266.96 = 7,486.05 : x
  2. Step 2: Convert to fraction form
    16,842.81/25,266.96 = 7,486.05/x
  3. Step 3: Cross multiply
    16,842.81x = 25,266.96 × 7,486.05
  4. Step 4: Simplify right side
    16,842.81x = 189,149,725.91
  5. Step 5: Solve for x
    x = 189,149,725.91/16,842.81
  6. Step 6: Final answer
    x = 11,230.30

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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.