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Finding the Fourth Proportional to 12,667.17, 19,000.71 and 3,433.17

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Solution

The fourth proportional to 12,667.17, 19,000.71 and 3,433.17 is: 5,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.17 : 19,000.71 = 3,433.17 : x
  2. Step 2: Convert to fraction form
    12,667.17/19,000.71 = 3,433.17/x
  3. Step 3: Cross multiply
    12,667.17x = 19,000.71 × 3,433.17
  4. Step 4: Simplify right side
    12,667.17x = 65,232,667.55
  5. Step 5: Solve for x
    x = 65,232,667.55/12,667.17
  6. Step 6: Final answer
    x = 5,149.74

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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.