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Finding the Fourth Proportional to 66,484.47, 99,745.47 and 27,069.87

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Solution

The fourth proportional to 66,484.47, 99,745.47 and 27,069.87 is: 40,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,484.47 : 99,745.47 = 27,069.87 : x
  2. Step 2: Convert to fraction form
    66,484.47/99,745.47 = 27,069.87/x
  3. Step 3: Cross multiply
    66,484.47x = 99,745.47 × 27,069.87
  4. Step 4: Simplify right side
    66,484.47x = 2,700,096,905.99
  5. Step 5: Solve for x
    x = 2,700,096,905.99/66,484.47
  6. Step 6: Final answer
    x = 40,612.45

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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.