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Finding the Fourth Proportional to 66,582, 91,883.16 and 36,775.92

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Solution

The fourth proportional to 66,582, 91,883.16 and 36,775.92 is: 50,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,582 : 91,883.16 = 36,775.92 : x
  2. Step 2: Convert to fraction form
    66,582/91,883.16 = 36,775.92/x
  3. Step 3: Cross multiply
    66,582x = 91,883.16 × 36,775.92
  4. Step 4: Simplify right side
    66,582x = 3,379,087,741.51
  5. Step 5: Solve for x
    x = 3,379,087,741.51/66,582
  6. Step 6: Final answer
    x = 50,750.77

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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.