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Finding the Fourth Proportional to 66,632.73, 91,955.30 and 36,417.39

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Solution

The fourth proportional to 66,632.73, 91,955.30 and 36,417.39 is: 50,257.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,632.73 : 91,955.30 = 36,417.39 : x
  2. Step 2: Convert to fraction form
    66,632.73/91,955.30 = 36,417.39/x
  3. Step 3: Cross multiply
    66,632.73x = 91,955.30 × 36,417.39
  4. Step 4: Simplify right side
    66,632.73x = 3,348,771,840.58
  5. Step 5: Solve for x
    x = 3,348,771,840.58/66,632.73
  6. Step 6: Final answer
    x = 50,257.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.