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Finding the Fourth Proportional to 66,333.48, 99,499.99 and 26,890.49

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Solution

The fourth proportional to 66,333.48, 99,499.99 and 26,890.49 is: 40,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,333.48 : 99,499.99 = 26,890.49 : x
  2. Step 2: Convert to fraction form
    66,333.48/99,499.99 = 26,890.49/x
  3. Step 3: Cross multiply
    66,333.48x = 99,499.99 × 26,890.49
  4. Step 4: Simplify right side
    66,333.48x = 2,675,603,486.10
  5. Step 5: Solve for x
    x = 2,675,603,486.10/66,333.48
  6. Step 6: Final answer
    x = 40,335.64

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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.