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Finding the Fourth Proportional to 66,300.40, 99,364.20 and 26,825.20

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Solution

The fourth proportional to 66,300.40, 99,364.20 and 26,825.20 is: 40,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300.40 : 99,364.20 = 26,825.20 : x
  2. Step 2: Convert to fraction form
    66,300.40/99,364.20 = 26,825.20/x
  3. Step 3: Cross multiply
    66,300.40x = 99,364.20 × 26,825.20
  4. Step 4: Simplify right side
    66,300.40x = 2,665,464,537.84
  5. Step 5: Solve for x
    x = 2,665,464,537.84/66,300.40
  6. Step 6: Final answer
    x = 40,202.84

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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.