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Finding the Fourth Proportional to 16,902.70, 25,348.65 and 7,039.60

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Solution

The fourth proportional to 16,902.70, 25,348.65 and 7,039.60 is: 10,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,902.70 : 25,348.65 = 7,039.60 : x
  2. Step 2: Convert to fraction form
    16,902.70/25,348.65 = 7,039.60/x
  3. Step 3: Cross multiply
    16,902.70x = 25,348.65 × 7,039.60
  4. Step 4: Simplify right side
    16,902.70x = 178,444,356.54
  5. Step 5: Solve for x
    x = 178,444,356.54/16,902.70
  6. Step 6: Final answer
    x = 10,557.15

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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.