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Finding the Fourth Proportional to 8,946.52, 13,420.70 and 2,372.71

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Solution

The fourth proportional to 8,946.52, 13,420.70 and 2,372.71 is: 3,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.52 : 13,420.70 = 2,372.71 : x
  2. Step 2: Convert to fraction form
    8,946.52/13,420.70 = 2,372.71/x
  3. Step 3: Cross multiply
    8,946.52x = 13,420.70 × 2,372.71
  4. Step 4: Simplify right side
    8,946.52x = 31,843,429.10
  5. Step 5: Solve for x
    x = 31,843,429.10/8,946.52
  6. Step 6: Final answer
    x = 3,559.31

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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.