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Finding the Fourth Proportional to 17,894.86, 24,690.93 and 10,821.13

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Solution

The fourth proportional to 17,894.86, 24,690.93 and 10,821.13 is: 14,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,894.86 : 24,690.93 = 10,821.13 : x
  2. Step 2: Convert to fraction form
    17,894.86/24,690.93 = 10,821.13/x
  3. Step 3: Cross multiply
    17,894.86x = 24,690.93 × 10,821.13
  4. Step 4: Simplify right side
    17,894.86x = 267,183,763.35
  5. Step 5: Solve for x
    x = 267,183,763.35/17,894.86
  6. Step 6: Final answer
    x = 14,930.75

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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.