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Finding the Fourth Proportional to 66,646.24, 99,940 and 25,064

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Solution

The fourth proportional to 66,646.24, 99,940 and 25,064 is: 37,584.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,646.24 : 99,940 = 25,064 : x
  2. Step 2: Convert to fraction form
    66,646.24/99,940 = 25,064/x
  3. Step 3: Cross multiply
    66,646.24x = 99,940 × 25,064
  4. Step 4: Simplify right side
    66,646.24x = 2,504,896,160
  5. Step 5: Solve for x
    x = 2,504,896,160/66,646.24
  6. Step 6: Final answer
    x = 37,584.96

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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.