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Finding the Fourth Proportional to 11,616.12, 16,035.15 and 7,844.40

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Solution

The fourth proportional to 11,616.12, 16,035.15 and 7,844.40 is: 10,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,616.12 : 16,035.15 = 7,844.40 : x
  2. Step 2: Convert to fraction form
    11,616.12/16,035.15 = 7,844.40/x
  3. Step 3: Cross multiply
    11,616.12x = 16,035.15 × 7,844.40
  4. Step 4: Simplify right side
    11,616.12x = 125,786,130.66
  5. Step 5: Solve for x
    x = 125,786,130.66/11,616.12
  6. Step 6: Final answer
    x = 10,828.58

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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.