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Finding the Fourth Proportional to 8,917.58, 13,376.94 and 2,994.23

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Solution

The fourth proportional to 8,917.58, 13,376.94 and 2,994.23 is: 4,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.58 : 13,376.94 = 2,994.23 : x
  2. Step 2: Convert to fraction form
    8,917.58/13,376.94 = 2,994.23/x
  3. Step 3: Cross multiply
    8,917.58x = 13,376.94 × 2,994.23
  4. Step 4: Simplify right side
    8,917.58x = 40,053,573.79
  5. Step 5: Solve for x
    x = 40,053,573.79/8,917.58
  6. Step 6: Final answer
    x = 4,491.53

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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.