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Finding the Fourth Proportional to 16,851.47, 25,269.03 and 8,957.78

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Solution

The fourth proportional to 16,851.47, 25,269.03 and 8,957.78 is: 13,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,851.47 : 25,269.03 = 8,957.78 : x
  2. Step 2: Convert to fraction form
    16,851.47/25,269.03 = 8,957.78/x
  3. Step 3: Cross multiply
    16,851.47x = 25,269.03 × 8,957.78
  4. Step 4: Simplify right side
    16,851.47x = 226,354,285.21
  5. Step 5: Solve for x
    x = 226,354,285.21/16,851.47
  6. Step 6: Final answer
    x = 13,432.31

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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.