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Finding the Fourth Proportional to 25,911.01, 38,878.81 and 11,124.14

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Solution

The fourth proportional to 25,911.01, 38,878.81 and 11,124.14 is: 16,691.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911.01 : 38,878.81 = 11,124.14 : x
  2. Step 2: Convert to fraction form
    25,911.01/38,878.81 = 11,124.14/x
  3. Step 3: Cross multiply
    25,911.01x = 38,878.81 × 11,124.14
  4. Step 4: Simplify right side
    25,911.01x = 432,493,325.47
  5. Step 5: Solve for x
    x = 432,493,325.47/25,911.01
  6. Step 6: Final answer
    x = 16,691.49

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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.