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Finding the Fourth Proportional to 66,523.61, 91,803.44 and 36,309.80

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Solution

The fourth proportional to 66,523.61, 91,803.44 and 36,309.80 is: 50,108.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,523.61 : 91,803.44 = 36,309.80 : x
  2. Step 2: Convert to fraction form
    66,523.61/91,803.44 = 36,309.80/x
  3. Step 3: Cross multiply
    66,523.61x = 91,803.44 × 36,309.80
  4. Step 4: Simplify right side
    66,523.61x = 3,333,364,866.00
  5. Step 5: Solve for x
    x = 3,333,364,866.00/66,523.61
  6. Step 6: Final answer
    x = 50,108.00

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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.