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Finding the Fourth Proportional to 13,257.36, 19,869.03 and 11,201.58

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Solution

The fourth proportional to 13,257.36, 19,869.03 and 11,201.58 is: 16,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.36 : 19,869.03 = 11,201.58 : x
  2. Step 2: Convert to fraction form
    13,257.36/19,869.03 = 11,201.58/x
  3. Step 3: Cross multiply
    13,257.36x = 19,869.03 × 11,201.58
  4. Step 4: Simplify right side
    13,257.36x = 222,564,529.07
  5. Step 5: Solve for x
    x = 222,564,529.07/13,257.36
  6. Step 6: Final answer
    x = 16,788.00

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1.5x scale

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.