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Finding the Fourth Proportional to 13,602.36, 18,774.24 and 8,296.08

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Solution

The fourth proportional to 13,602.36, 18,774.24 and 8,296.08 is: 11,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.36 : 18,774.24 = 8,296.08 : x
  2. Step 2: Convert to fraction form
    13,602.36/18,774.24 = 8,296.08/x
  3. Step 3: Cross multiply
    13,602.36x = 18,774.24 × 8,296.08
  4. Step 4: Simplify right side
    13,602.36x = 155,752,596.98
  5. Step 5: Solve for x
    x = 155,752,596.98/13,602.36
  6. Step 6: Final answer
    x = 11,450.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.