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Finding the Fourth Proportional to 14,392.68, 19,860.84 and 8,338.56

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Solution

The fourth proportional to 14,392.68, 19,860.84 and 8,338.56 is: 11,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.68 : 19,860.84 = 8,338.56 : x
  2. Step 2: Convert to fraction form
    14,392.68/19,860.84 = 8,338.56/x
  3. Step 3: Cross multiply
    14,392.68x = 19,860.84 × 8,338.56
  4. Step 4: Simplify right side
    14,392.68x = 165,610,805.99
  5. Step 5: Solve for x
    x = 165,610,805.99/14,392.68
  6. Step 6: Final answer
    x = 11,506.60

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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.