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Finding the Fourth Proportional to 66,605.67, 99,905.76 and 37,004.63

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Solution

The fourth proportional to 66,605.67, 99,905.76 and 37,004.63 is: 55,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,605.67 : 99,905.76 = 37,004.63 : x
  2. Step 2: Convert to fraction form
    66,605.67/99,905.76 = 37,004.63/x
  3. Step 3: Cross multiply
    66,605.67x = 99,905.76 × 37,004.63
  4. Step 4: Simplify right side
    66,605.67x = 3,696,975,184.14
  5. Step 5: Solve for x
    x = 3,696,975,184.14/66,605.67
  6. Step 6: Final answer
    x = 55,505.41

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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.