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Finding the Fourth Proportional to 8,994.65, 13,493.79 and 3,151.71

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Solution

The fourth proportional to 8,994.65, 13,493.79 and 3,151.71 is: 4,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.65 : 13,493.79 = 3,151.71 : x
  2. Step 2: Convert to fraction form
    8,994.65/13,493.79 = 3,151.71/x
  3. Step 3: Cross multiply
    8,994.65x = 13,493.79 × 3,151.71
  4. Step 4: Simplify right side
    8,994.65x = 42,528,512.88
  5. Step 5: Solve for x
    x = 42,528,512.88/8,994.65
  6. Step 6: Final answer
    x = 4,728.20

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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.