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Finding the Third Proportional to 66,511.13 and 90,466.88

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Solution

The third proportional to 66,511.13 and 90,466.88 is: 123,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,511.13 : 90,466.88 = 90,466.88 : x
  2. Step 2: Convert to fraction form
    66,511.13/90,466.88 = 90,466.88/x
  3. Step 3: Cross multiply
    66,511.13x = 90,466.88 × 90,466.88
  4. Step 4: Simplify right side
    66,511.13x = 8,184,255,472.27
  5. Step 5: Solve for x
    x = 8,184,255,472.27/66,511.13
  6. Step 6: Final answer
    x = 123,050.93

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.