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Finding the Fourth Proportional to 18,675.88, 25,774.32 and 10,294

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Solution

The fourth proportional to 18,675.88, 25,774.32 and 10,294 is: 14,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.88 : 25,774.32 = 10,294 : x
  2. Step 2: Convert to fraction form
    18,675.88/25,774.32 = 10,294/x
  3. Step 3: Cross multiply
    18,675.88x = 25,774.32 × 10,294
  4. Step 4: Simplify right side
    18,675.88x = 265,320,850.08
  5. Step 5: Solve for x
    x = 265,320,850.08/18,675.88
  6. Step 6: Final answer
    x = 14,206.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.