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Finding the Fourth Proportional to 25,476.80, 38,138.40 and 22,404.80

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Solution

The fourth proportional to 25,476.80, 38,138.40 and 22,404.80 is: 33,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,476.80 : 38,138.40 = 22,404.80 : x
  2. Step 2: Convert to fraction form
    25,476.80/38,138.40 = 22,404.80/x
  3. Step 3: Cross multiply
    25,476.80x = 38,138.40 × 22,404.80
  4. Step 4: Simplify right side
    25,476.80x = 854,483,224.32
  5. Step 5: Solve for x
    x = 854,483,224.32/25,476.80
  6. Step 6: Final answer
    x = 33,539.66

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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.