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Finding the Fourth Proportional to 13,774.44, 19,008.56 and 7,486.68

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Solution

The fourth proportional to 13,774.44, 19,008.56 and 7,486.68 is: 10,331.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.44 : 19,008.56 = 7,486.68 : x
  2. Step 2: Convert to fraction form
    13,774.44/19,008.56 = 7,486.68/x
  3. Step 3: Cross multiply
    13,774.44x = 19,008.56 × 7,486.68
  4. Step 4: Simplify right side
    13,774.44x = 142,311,005.98
  5. Step 5: Solve for x
    x = 142,311,005.98/13,774.44
  6. Step 6: Final answer
    x = 10,331.53

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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.