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Finding the Fourth Proportional to 18,766.49, 25,894.15 and 10,699.99

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Solution

The fourth proportional to 18,766.49, 25,894.15 and 10,699.99 is: 14,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.49 : 25,894.15 = 10,699.99 : x
  2. Step 2: Convert to fraction form
    18,766.49/25,894.15 = 10,699.99/x
  3. Step 3: Cross multiply
    18,766.49x = 25,894.15 × 10,699.99
  4. Step 4: Simplify right side
    18,766.49x = 277,067,054.57
  5. Step 5: Solve for x
    x = 277,067,054.57/18,766.49
  6. Step 6: Final answer
    x = 14,763.93

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1.5x scale

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.