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Finding the Fourth Proportional to 13,245.44, 19,871.88 and 10,774.08

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Solution

The fourth proportional to 13,245.44, 19,871.88 and 10,774.08 is: 16,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.44 : 19,871.88 = 10,774.08 : x
  2. Step 2: Convert to fraction form
    13,245.44/19,871.88 = 10,774.08/x
  3. Step 3: Cross multiply
    13,245.44x = 19,871.88 × 10,774.08
  4. Step 4: Simplify right side
    13,245.44x = 214,101,224.87
  5. Step 5: Solve for x
    x = 214,101,224.87/13,245.44
  6. Step 6: Final answer
    x = 16,164.15

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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.