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Finding the Fourth Proportional to 12,934.62, 19,370.07 and 7,374.24

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Solution

The fourth proportional to 12,934.62, 19,370.07 and 7,374.24 is: 11,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.62 : 19,370.07 = 7,374.24 : x
  2. Step 2: Convert to fraction form
    12,934.62/19,370.07 = 7,374.24/x
  3. Step 3: Cross multiply
    12,934.62x = 19,370.07 × 7,374.24
  4. Step 4: Simplify right side
    12,934.62x = 142,839,545.00
  5. Step 5: Solve for x
    x = 142,839,545.00/12,934.62
  6. Step 6: Final answer
    x = 11,043.20

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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.