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Finding the Fourth Proportional to 66,504.49, 99,700.59 and 30,947.42

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Solution

The fourth proportional to 66,504.49, 99,700.59 and 30,947.42 is: 46,395.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.49 : 99,700.59 = 30,947.42 : x
  2. Step 2: Convert to fraction form
    66,504.49/99,700.59 = 30,947.42/x
  3. Step 3: Cross multiply
    66,504.49x = 99,700.59 × 30,947.42
  4. Step 4: Simplify right side
    66,504.49x = 3,085,476,032.98
  5. Step 5: Solve for x
    x = 3,085,476,032.98/66,504.49
  6. Step 6: Final answer
    x = 46,395.00

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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.