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Finding the Fourth Proportional to 4,992.79, 7,489.21 and 2,359.45

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Solution

The fourth proportional to 4,992.79, 7,489.21 and 2,359.45 is: 3,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.79 : 7,489.21 = 2,359.45 : x
  2. Step 2: Convert to fraction form
    4,992.79/7,489.21 = 2,359.45/x
  3. Step 3: Cross multiply
    4,992.79x = 7,489.21 × 2,359.45
  4. Step 4: Simplify right side
    4,992.79x = 17,670,416.53
  5. Step 5: Solve for x
    x = 17,670,416.53/4,992.79
  6. Step 6: Final answer
    x = 3,539.19

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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.