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Finding the Fourth Proportional to 5,894.88, 8,831.99 and 3,115.49

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Solution

The fourth proportional to 5,894.88, 8,831.99 and 3,115.49 is: 4,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,894.88 : 8,831.99 = 3,115.49 : x
  2. Step 2: Convert to fraction form
    5,894.88/8,831.99 = 3,115.49/x
  3. Step 3: Cross multiply
    5,894.88x = 8,831.99 × 3,115.49
  4. Step 4: Simplify right side
    5,894.88x = 27,515,947.47
  5. Step 5: Solve for x
    x = 27,515,947.47/5,894.88
  6. Step 6: Final answer
    x = 4,667.77

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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.