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Finding the Fourth Proportional to 11,518.84, 15,895.90 and 6,550.84

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Solution

The fourth proportional to 11,518.84, 15,895.90 and 6,550.84 is: 9,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.84 : 15,895.90 = 6,550.84 : x
  2. Step 2: Convert to fraction form
    11,518.84/15,895.90 = 6,550.84/x
  3. Step 3: Cross multiply
    11,518.84x = 15,895.90 × 6,550.84
  4. Step 4: Simplify right side
    11,518.84x = 104,131,497.56
  5. Step 5: Solve for x
    x = 104,131,497.56/11,518.84
  6. Step 6: Final answer
    x = 9,040.10

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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.