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Finding the Fourth Proportional to 5,007.60, 7,489.53 and 4,089.06

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Solution

The fourth proportional to 5,007.60, 7,489.53 and 4,089.06 is: 6,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.60 : 7,489.53 = 4,089.06 : x
  2. Step 2: Convert to fraction form
    5,007.60/7,489.53 = 4,089.06/x
  3. Step 3: Cross multiply
    5,007.60x = 7,489.53 × 4,089.06
  4. Step 4: Simplify right side
    5,007.60x = 30,625,137.54
  5. Step 5: Solve for x
    x = 30,625,137.54/5,007.60
  6. Step 6: Final answer
    x = 6,115.73

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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.