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Finding the Fourth Proportional to 67,143.63, 100,715.45 and 22,774.87

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Solution

The fourth proportional to 67,143.63, 100,715.45 and 22,774.87 is: 34,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143.63 : 100,715.45 = 22,774.87 : x
  2. Step 2: Convert to fraction form
    67,143.63/100,715.45 = 22,774.87/x
  3. Step 3: Cross multiply
    67,143.63x = 100,715.45 × 22,774.87
  4. Step 4: Simplify right side
    67,143.63x = 2,293,781,420.87
  5. Step 5: Solve for x
    x = 2,293,781,420.87/67,143.63
  6. Step 6: Final answer
    x = 34,162.31

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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.