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Finding the Fourth Proportional to 25,497.72, 38,220.30 and 18,460.30

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Solution

The fourth proportional to 25,497.72, 38,220.30 and 18,460.30 is: 27,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,497.72 : 38,220.30 = 18,460.30 : x
  2. Step 2: Convert to fraction form
    25,497.72/38,220.30 = 18,460.30/x
  3. Step 3: Cross multiply
    25,497.72x = 38,220.30 × 18,460.30
  4. Step 4: Simplify right side
    25,497.72x = 705,558,204.09
  5. Step 5: Solve for x
    x = 705,558,204.09/25,497.72
  6. Step 6: Final answer
    x = 27,671.42

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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.