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Finding the Fourth Proportional to 66,696.63, 100,045.11 and 27,253.74

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Solution

The fourth proportional to 66,696.63, 100,045.11 and 27,253.74 is: 40,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.63 : 100,045.11 = 27,253.74 : x
  2. Step 2: Convert to fraction form
    66,696.63/100,045.11 = 27,253.74/x
  3. Step 3: Cross multiply
    66,696.63x = 100,045.11 × 27,253.74
  4. Step 4: Simplify right side
    66,696.63x = 2,726,602,984.12
  5. Step 5: Solve for x
    x = 2,726,602,984.12/66,696.63
  6. Step 6: Final answer
    x = 40,880.67

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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.