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Finding the Fourth Proportional to 3,396.93, 5,095.39 and 931.94

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Solution

The fourth proportional to 3,396.93, 5,095.39 and 931.94 is: 1,397.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.93 : 5,095.39 = 931.94 : x
  2. Step 2: Convert to fraction form
    3,396.93/5,095.39 = 931.94/x
  3. Step 3: Cross multiply
    3,396.93x = 5,095.39 × 931.94
  4. Step 4: Simplify right side
    3,396.93x = 4,748,611.66
  5. Step 5: Solve for x
    x = 4,748,611.66/3,396.93
  6. Step 6: Final answer
    x = 1,397.91

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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.