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Finding the Fourth Proportional to 17,899.52, 26,838.99 and 7,376.80

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Solution

The fourth proportional to 17,899.52, 26,838.99 and 7,376.80 is: 11,060.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,899.52 : 26,838.99 = 7,376.80 : x
  2. Step 2: Convert to fraction form
    17,899.52/26,838.99 = 7,376.80/x
  3. Step 3: Cross multiply
    17,899.52x = 26,838.99 × 7,376.80
  4. Step 4: Simplify right side
    17,899.52x = 197,985,824.55
  5. Step 5: Solve for x
    x = 197,985,824.55/17,899.52
  6. Step 6: Final answer
    x = 11,060.96

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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.