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Finding the Fourth Proportional to 14,418.53, 19,897.51 and 7,794.53

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Solution

The fourth proportional to 14,418.53, 19,897.51 and 7,794.53 is: 10,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.53 : 19,897.51 = 7,794.53 : x
  2. Step 2: Convert to fraction form
    14,418.53/19,897.51 = 7,794.53/x
  3. Step 3: Cross multiply
    14,418.53x = 19,897.51 × 7,794.53
  4. Step 4: Simplify right side
    14,418.53x = 155,091,738.62
  5. Step 5: Solve for x
    x = 155,091,738.62/14,418.53
  6. Step 6: Final answer
    x = 10,756.42

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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.