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Finding the Fourth Proportional to 22,002.66, 30,363.54 and 11,931.12

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Solution

The fourth proportional to 22,002.66, 30,363.54 and 11,931.12 is: 16,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.66 : 30,363.54 = 11,931.12 : x
  2. Step 2: Convert to fraction form
    22,002.66/30,363.54 = 11,931.12/x
  3. Step 3: Cross multiply
    22,002.66x = 30,363.54 × 11,931.12
  4. Step 4: Simplify right side
    22,002.66x = 362,271,039.36
  5. Step 5: Solve for x
    x = 362,271,039.36/22,002.66
  6. Step 6: Final answer
    x = 16,464.87

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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.