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Finding the Fourth Proportional to 16,902.66, 25,335.74 and 7,039.28

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Solution

The fourth proportional to 16,902.66, 25,335.74 and 7,039.28 is: 10,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,902.66 : 25,335.74 = 7,039.28 : x
  2. Step 2: Convert to fraction form
    16,902.66/25,335.74 = 7,039.28/x
  3. Step 3: Cross multiply
    16,902.66x = 25,335.74 × 7,039.28
  4. Step 4: Simplify right side
    16,902.66x = 178,345,367.87
  5. Step 5: Solve for x
    x = 178,345,367.87/16,902.66
  6. Step 6: Final answer
    x = 10,551.32

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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.