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Finding the Fourth Proportional to 66,513, 99,773.73 and 27,048.54

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Solution

The fourth proportional to 66,513, 99,773.73 and 27,048.54 is: 40,574.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513 : 99,773.73 = 27,048.54 : x
  2. Step 2: Convert to fraction form
    66,513/99,773.73 = 27,048.54/x
  3. Step 3: Cross multiply
    66,513x = 99,773.73 × 27,048.54
  4. Step 4: Simplify right side
    66,513x = 2,698,733,726.85
  5. Step 5: Solve for x
    x = 2,698,733,726.85/66,513
  6. Step 6: Final answer
    x = 40,574.53

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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.