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Finding the Fourth Proportional to 8,993.52, 13,470.66 and 7,415.82

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Solution

The fourth proportional to 8,993.52, 13,470.66 and 7,415.82 is: 11,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.52 : 13,470.66 = 7,415.82 : x
  2. Step 2: Convert to fraction form
    8,993.52/13,470.66 = 7,415.82/x
  3. Step 3: Cross multiply
    8,993.52x = 13,470.66 × 7,415.82
  4. Step 4: Simplify right side
    8,993.52x = 99,895,989.84
  5. Step 5: Solve for x
    x = 99,895,989.84/8,993.52
  6. Step 6: Final answer
    x = 11,107.55

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1.5x scale

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.