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Finding the Fourth Proportional to 13,235.10, 18,264.49 and 7,266.88

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Solution

The fourth proportional to 13,235.10, 18,264.49 and 7,266.88 is: 10,028.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.10 : 18,264.49 = 7,266.88 : x
  2. Step 2: Convert to fraction form
    13,235.10/18,264.49 = 7,266.88/x
  3. Step 3: Cross multiply
    13,235.10x = 18,264.49 × 7,266.88
  4. Step 4: Simplify right side
    13,235.10x = 132,725,861.75
  5. Step 5: Solve for x
    x = 132,725,861.75/13,235.10
  6. Step 6: Final answer
    x = 10,028.33

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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.