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Finding the Fourth Proportional to 9,894.15, 14,839.62 and 3,657.11

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Solution

The fourth proportional to 9,894.15, 14,839.62 and 3,657.11 is: 5,485.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,894.15 : 14,839.62 = 3,657.11 : x
  2. Step 2: Convert to fraction form
    9,894.15/14,839.62 = 3,657.11/x
  3. Step 3: Cross multiply
    9,894.15x = 14,839.62 × 3,657.11
  4. Step 4: Simplify right side
    9,894.15x = 54,270,048.50
  5. Step 5: Solve for x
    x = 54,270,048.50/9,894.15
  6. Step 6: Final answer
    x = 5,485.06

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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.