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Finding the Fourth Proportional to 5,274.96, 7,894.80 and 3,790.32

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Solution

The fourth proportional to 5,274.96, 7,894.80 and 3,790.32 is: 5,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.96 : 7,894.80 = 3,790.32 : x
  2. Step 2: Convert to fraction form
    5,274.96/7,894.80 = 3,790.32/x
  3. Step 3: Cross multiply
    5,274.96x = 7,894.80 × 3,790.32
  4. Step 4: Simplify right side
    5,274.96x = 29,923,818.34
  5. Step 5: Solve for x
    x = 29,923,818.34/5,274.96
  6. Step 6: Final answer
    x = 5,672.80

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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.