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Finding the Fourth Proportional to 19,143.27, 28,642.77 and 17,200.89

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Solution

The fourth proportional to 19,143.27, 28,642.77 and 17,200.89 is: 25,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.27 : 28,642.77 = 17,200.89 : x
  2. Step 2: Convert to fraction form
    19,143.27/28,642.77 = 17,200.89/x
  3. Step 3: Cross multiply
    19,143.27x = 28,642.77 × 17,200.89
  4. Step 4: Simplify right side
    19,143.27x = 492,681,136.07
  5. Step 5: Solve for x
    x = 492,681,136.07/19,143.27
  6. Step 6: Final answer
    x = 25,736.52

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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.