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Finding the Fourth Proportional to 8,957.00, 13,435.91 and 3,409.11

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Solution

The fourth proportional to 8,957.00, 13,435.91 and 3,409.11 is: 5,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.00 : 13,435.91 = 3,409.11 : x
  2. Step 2: Convert to fraction form
    8,957.00/13,435.91 = 3,409.11/x
  3. Step 3: Cross multiply
    8,957.00x = 13,435.91 × 3,409.11
  4. Step 4: Simplify right side
    8,957.00x = 45,804,478.09
  5. Step 5: Solve for x
    x = 45,804,478.09/8,957.00
  6. Step 6: Final answer
    x = 5,113.82

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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.