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Finding the Fourth Proportional to 5,390.24, 8,076.24 and 3,303.92

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Solution

The fourth proportional to 5,390.24, 8,076.24 and 3,303.92 is: 4,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.24 : 8,076.24 = 3,303.92 : x
  2. Step 2: Convert to fraction form
    5,390.24/8,076.24 = 3,303.92/x
  3. Step 3: Cross multiply
    5,390.24x = 8,076.24 × 3,303.92
  4. Step 4: Simplify right side
    5,390.24x = 26,683,250.86
  5. Step 5: Solve for x
    x = 26,683,250.86/5,390.24
  6. Step 6: Final answer
    x = 4,950.29

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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.