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Finding the Fourth Proportional to 17,776.66, 24,534.78 and 13,520.88

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Solution

The fourth proportional to 17,776.66, 24,534.78 and 13,520.88 is: 18,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,776.66 : 24,534.78 = 13,520.88 : x
  2. Step 2: Convert to fraction form
    17,776.66/24,534.78 = 13,520.88/x
  3. Step 3: Cross multiply
    17,776.66x = 24,534.78 × 13,520.88
  4. Step 4: Simplify right side
    17,776.66x = 331,731,816.21
  5. Step 5: Solve for x
    x = 331,731,816.21/17,776.66
  6. Step 6: Final answer
    x = 18,661.09

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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.