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Finding the Fourth Proportional to 8,448.45, 11,658.80 and 4,722.45

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Solution

The fourth proportional to 8,448.45, 11,658.80 and 4,722.45 is: 6,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.45 : 11,658.80 = 4,722.45 : x
  2. Step 2: Convert to fraction form
    8,448.45/11,658.80 = 4,722.45/x
  3. Step 3: Cross multiply
    8,448.45x = 11,658.80 × 4,722.45
  4. Step 4: Simplify right side
    8,448.45x = 55,058,076.45
  5. Step 5: Solve for x
    x = 55,058,076.45/8,448.45
  6. Step 6: Final answer
    x = 6,516.94

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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.