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Finding the Fourth Proportional to 13,811.34, 19,060.02 and 7,524.12

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Solution

The fourth proportional to 13,811.34, 19,060.02 and 7,524.12 is: 10,383.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.34 : 19,060.02 = 7,524.12 : x
  2. Step 2: Convert to fraction form
    13,811.34/19,060.02 = 7,524.12/x
  3. Step 3: Cross multiply
    13,811.34x = 19,060.02 × 7,524.12
  4. Step 4: Simplify right side
    13,811.34x = 143,409,877.68
  5. Step 5: Solve for x
    x = 143,409,877.68/13,811.34
  6. Step 6: Final answer
    x = 10,383.49

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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.