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Finding the Fourth Proportional to 19,149.01, 28,651.12 and 17,206.63

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Solution

The fourth proportional to 19,149.01, 28,651.12 and 17,206.63 is: 25,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.01 : 28,651.12 = 17,206.63 : x
  2. Step 2: Convert to fraction form
    19,149.01/28,651.12 = 17,206.63/x
  3. Step 3: Cross multiply
    19,149.01x = 28,651.12 × 17,206.63
  4. Step 4: Simplify right side
    19,149.01x = 492,989,106.28
  5. Step 5: Solve for x
    x = 492,989,106.28/19,149.01
  6. Step 6: Final answer
    x = 25,744.89

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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.