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Finding the Fourth Proportional to 8,928.94, 12,322.01 and 4,950.12

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Solution

The fourth proportional to 8,928.94, 12,322.01 and 4,950.12 is: 6,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.94 : 12,322.01 = 4,950.12 : x
  2. Step 2: Convert to fraction form
    8,928.94/12,322.01 = 4,950.12/x
  3. Step 3: Cross multiply
    8,928.94x = 12,322.01 × 4,950.12
  4. Step 4: Simplify right side
    8,928.94x = 60,995,428.14
  5. Step 5: Solve for x
    x = 60,995,428.14/8,928.94
  6. Step 6: Final answer
    x = 6,831.21

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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.