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Finding the Fourth Proportional to 5,424.48, 7,489.86 and 4,795.71

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Solution

The fourth proportional to 5,424.48, 7,489.86 and 4,795.71 is: 6,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.48 : 7,489.86 = 4,795.71 : x
  2. Step 2: Convert to fraction form
    5,424.48/7,489.86 = 4,795.71/x
  3. Step 3: Cross multiply
    5,424.48x = 7,489.86 × 4,795.71
  4. Step 4: Simplify right side
    5,424.48x = 35,919,196.50
  5. Step 5: Solve for x
    x = 35,919,196.50/5,424.48
  6. Step 6: Final answer
    x = 6,621.68

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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.