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Finding the Fourth Proportional to 25,691.96, 38,537.96 and 16,814.80

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Solution

The fourth proportional to 25,691.96, 38,537.96 and 16,814.80 is: 25,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.96 : 38,537.96 = 16,814.80 : x
  2. Step 2: Convert to fraction form
    25,691.96/38,537.96 = 16,814.80/x
  3. Step 3: Cross multiply
    25,691.96x = 38,537.96 × 16,814.80
  4. Step 4: Simplify right side
    25,691.96x = 648,008,089.81
  5. Step 5: Solve for x
    x = 648,008,089.81/25,691.96
  6. Step 6: Final answer
    x = 25,222.21

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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.