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Finding the Fourth Proportional to 25,894.14, 38,840.94 and 8,363.58

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Solution

The fourth proportional to 25,894.14, 38,840.94 and 8,363.58 is: 12,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,894.14 : 38,840.94 = 8,363.58 : x
  2. Step 2: Convert to fraction form
    25,894.14/38,840.94 = 8,363.58/x
  3. Step 3: Cross multiply
    25,894.14x = 38,840.94 × 8,363.58
  4. Step 4: Simplify right side
    25,894.14x = 324,849,308.97
  5. Step 5: Solve for x
    x = 324,849,308.97/25,894.14
  6. Step 6: Final answer
    x = 12,545.28

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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.