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Finding the Fourth Proportional to 13,635.45, 19,050.75 and 13,635.45

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Solution

The fourth proportional to 13,635.45, 19,050.75 and 13,635.45 is: 19,050.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.45 : 19,050.75 = 13,635.45 : x
  2. Step 2: Convert to fraction form
    13,635.45/19,050.75 = 13,635.45/x
  3. Step 3: Cross multiply
    13,635.45x = 19,050.75 × 13,635.45
  4. Step 4: Simplify right side
    13,635.45x = 259,765,549.09
  5. Step 5: Solve for x
    x = 259,765,549.09/13,635.45
  6. Step 6: Final answer
    x = 19,050.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.