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Finding the Fourth Proportional to 5,372.31, 7,398.45 and 4,836.63

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Solution

The fourth proportional to 5,372.31, 7,398.45 and 4,836.63 is: 6,660.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.31 : 7,398.45 = 4,836.63 : x
  2. Step 2: Convert to fraction form
    5,372.31/7,398.45 = 4,836.63/x
  3. Step 3: Cross multiply
    5,372.31x = 7,398.45 × 4,836.63
  4. Step 4: Simplify right side
    5,372.31x = 35,783,565.22
  5. Step 5: Solve for x
    x = 35,783,565.22/5,372.31
  6. Step 6: Final answer
    x = 6,660.74

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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.