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Finding the Fourth Proportional to 16,907.20, 25,361.71 and 7,047.47

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Solution

The fourth proportional to 16,907.20, 25,361.71 and 7,047.47 is: 10,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,907.20 : 25,361.71 = 7,047.47 : x
  2. Step 2: Convert to fraction form
    16,907.20/25,361.71 = 7,047.47/x
  3. Step 3: Cross multiply
    16,907.20x = 25,361.71 × 7,047.47
  4. Step 4: Simplify right side
    16,907.20x = 178,735,936.16
  5. Step 5: Solve for x
    x = 178,735,936.16/16,907.20
  6. Step 6: Final answer
    x = 10,571.59

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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.