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Finding the Fourth Proportional to 2,906.61, 4,358.53 and 1,056.43

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Solution

The fourth proportional to 2,906.61, 4,358.53 and 1,056.43 is: 1,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.61 : 4,358.53 = 1,056.43 : x
  2. Step 2: Convert to fraction form
    2,906.61/4,358.53 = 1,056.43/x
  3. Step 3: Cross multiply
    2,906.61x = 4,358.53 × 1,056.43
  4. Step 4: Simplify right side
    2,906.61x = 4,604,481.85
  5. Step 5: Solve for x
    x = 4,604,481.85/2,906.61
  6. Step 6: Final answer
    x = 1,584.14

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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.