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Finding the Fourth Proportional to 66,187.54, 99,330.54 and 26,745

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Solution

The fourth proportional to 66,187.54, 99,330.54 and 26,745 is: 40,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.54 : 99,330.54 = 26,745 : x
  2. Step 2: Convert to fraction form
    66,187.54/99,330.54 = 26,745/x
  3. Step 3: Cross multiply
    66,187.54x = 99,330.54 × 26,745
  4. Step 4: Simplify right side
    66,187.54x = 2,656,595,292.30
  5. Step 5: Solve for x
    x = 2,656,595,292.30/66,187.54
  6. Step 6: Final answer
    x = 40,137.39

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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.