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Finding the Fourth Proportional to 14,307.62, 19,744.45 and 8,019.99

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Solution

The fourth proportional to 14,307.62, 19,744.45 and 8,019.99 is: 11,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.62 : 19,744.45 = 8,019.99 : x
  2. Step 2: Convert to fraction form
    14,307.62/19,744.45 = 8,019.99/x
  3. Step 3: Cross multiply
    14,307.62x = 19,744.45 × 8,019.99
  4. Step 4: Simplify right side
    14,307.62x = 158,350,340.92
  5. Step 5: Solve for x
    x = 158,350,340.92/14,307.62
  6. Step 6: Final answer
    x = 11,067.55

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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.