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Finding the Fourth Proportional to 25,994.40, 38,894.40 and 17,246.40

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Solution

The fourth proportional to 25,994.40, 38,894.40 and 17,246.40 is: 25,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,994.40 : 38,894.40 = 17,246.40 : x
  2. Step 2: Convert to fraction form
    25,994.40/38,894.40 = 17,246.40/x
  3. Step 3: Cross multiply
    25,994.40x = 38,894.40 × 17,246.40
  4. Step 4: Simplify right side
    25,994.40x = 670,788,380.16
  5. Step 5: Solve for x
    x = 670,788,380.16/25,994.40
  6. Step 6: Final answer
    x = 25,805.11

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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.