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Finding the Fourth Proportional to 14,039.88, 19,375.36 and 7,752.38

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Solution

The fourth proportional to 14,039.88, 19,375.36 and 7,752.38 is: 10,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.88 : 19,375.36 = 7,752.38 : x
  2. Step 2: Convert to fraction form
    14,039.88/19,375.36 = 7,752.38/x
  3. Step 3: Cross multiply
    14,039.88x = 19,375.36 × 7,752.38
  4. Step 4: Simplify right side
    14,039.88x = 150,205,153.36
  5. Step 5: Solve for x
    x = 150,205,153.36/14,039.88
  6. Step 6: Final answer
    x = 10,698.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.