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Finding the Fourth Proportional to 19,272.60, 28,851.30 and 16,968.60

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Solution

The fourth proportional to 19,272.60, 28,851.30 and 16,968.60 is: 25,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.60 : 28,851.30 = 16,968.60 : x
  2. Step 2: Convert to fraction form
    19,272.60/28,851.30 = 16,968.60/x
  3. Step 3: Cross multiply
    19,272.60x = 28,851.30 × 16,968.60
  4. Step 4: Simplify right side
    19,272.60x = 489,566,169.18
  5. Step 5: Solve for x
    x = 489,566,169.18/19,272.60
  6. Step 6: Final answer
    x = 25,402.19

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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.