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Finding the Fourth Proportional to 8,928.92, 12,321.90 and 4,950.04

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Solution

The fourth proportional to 8,928.92, 12,321.90 and 4,950.04 is: 6,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.92 : 12,321.90 = 4,950.04 : x
  2. Step 2: Convert to fraction form
    8,928.92/12,321.90 = 4,950.04/x
  3. Step 3: Cross multiply
    8,928.92x = 12,321.90 × 4,950.04
  4. Step 4: Simplify right side
    8,928.92x = 60,993,897.88
  5. Step 5: Solve for x
    x = 60,993,897.88/8,928.92
  6. Step 6: Final answer
    x = 6,831.05

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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.