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Finding the Fourth Proportional to 8,957.63, 13,436.57 and 3,411.28

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Solution

The fourth proportional to 8,957.63, 13,436.57 and 3,411.28 is: 5,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.63 : 13,436.57 = 3,411.28 : x
  2. Step 2: Convert to fraction form
    8,957.63/13,436.57 = 3,411.28/x
  3. Step 3: Cross multiply
    8,957.63x = 13,436.57 × 3,411.28
  4. Step 4: Simplify right side
    8,957.63x = 45,835,902.51
  5. Step 5: Solve for x
    x = 45,835,902.51/8,957.63
  6. Step 6: Final answer
    x = 5,116.97

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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.