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Finding the Fourth Proportional to 8,996.63, 13,498.85 and 4,831.79

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Solution

The fourth proportional to 8,996.63, 13,498.85 and 4,831.79 is: 7,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.63 : 13,498.85 = 4,831.79 : x
  2. Step 2: Convert to fraction form
    8,996.63/13,498.85 = 4,831.79/x
  3. Step 3: Cross multiply
    8,996.63x = 13,498.85 × 4,831.79
  4. Step 4: Simplify right side
    8,996.63x = 65,223,516.79
  5. Step 5: Solve for x
    x = 65,223,516.79/8,996.63
  6. Step 6: Final answer
    x = 7,249.78

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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.