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Finding the Fourth Proportional to 4,994.64, 6,890.40 and 3,316.73

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Solution

The fourth proportional to 4,994.64, 6,890.40 and 3,316.73 is: 4,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.64 : 6,890.40 = 3,316.73 : x
  2. Step 2: Convert to fraction form
    4,994.64/6,890.40 = 3,316.73/x
  3. Step 3: Cross multiply
    4,994.64x = 6,890.40 × 3,316.73
  4. Step 4: Simplify right side
    4,994.64x = 22,853,561.94
  5. Step 5: Solve for x
    x = 22,853,561.94/4,994.64
  6. Step 6: Final answer
    x = 4,575.62

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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.