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Finding the Fourth Proportional to 66,364.52, 99,549.26 and 18,338.00

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Solution

The fourth proportional to 66,364.52, 99,549.26 and 18,338.00 is: 27,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364.52 : 99,549.26 = 18,338.00 : x
  2. Step 2: Convert to fraction form
    66,364.52/99,549.26 = 18,338.00/x
  3. Step 3: Cross multiply
    66,364.52x = 99,549.26 × 18,338.00
  4. Step 4: Simplify right side
    66,364.52x = 1,825,533,740.44
  5. Step 5: Solve for x
    x = 1,825,533,740.44/66,364.52
  6. Step 6: Final answer
    x = 27,507.68

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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.