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Finding the Fourth Proportional to 7,374.97, 11,036.94 and 7,068.79

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Solution

The fourth proportional to 7,374.97, 11,036.94 and 7,068.79 is: 10,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.97 : 11,036.94 = 7,068.79 : x
  2. Step 2: Convert to fraction form
    7,374.97/11,036.94 = 7,068.79/x
  3. Step 3: Cross multiply
    7,374.97x = 11,036.94 × 7,068.79
  4. Step 4: Simplify right side
    7,374.97x = 78,017,811.10
  5. Step 5: Solve for x
    x = 78,017,811.10/7,374.97
  6. Step 6: Final answer
    x = 10,578.73

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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.