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Finding the Fourth Proportional to 18,968.52, 28,515.10 and 17,598.41

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Solution

The fourth proportional to 18,968.52, 28,515.10 and 17,598.41 is: 26,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.52 : 28,515.10 = 17,598.41 : x
  2. Step 2: Convert to fraction form
    18,968.52/28,515.10 = 17,598.41/x
  3. Step 3: Cross multiply
    18,968.52x = 28,515.10 × 17,598.41
  4. Step 4: Simplify right side
    18,968.52x = 501,820,420.99
  5. Step 5: Solve for x
    x = 501,820,420.99/18,968.52
  6. Step 6: Final answer
    x = 26,455.43

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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.