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Finding the Fourth Proportional to 4,392.54, 6,588.81 and 1,105.63

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Solution

The fourth proportional to 4,392.54, 6,588.81 and 1,105.63 is: 1,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.54 : 6,588.81 = 1,105.63 : x
  2. Step 2: Convert to fraction form
    4,392.54/6,588.81 = 1,105.63/x
  3. Step 3: Cross multiply
    4,392.54x = 6,588.81 × 1,105.63
  4. Step 4: Simplify right side
    4,392.54x = 7,284,769.53
  5. Step 5: Solve for x
    x = 7,284,769.53/4,392.54
  6. Step 6: Final answer
    x = 1,658.44

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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.