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Finding the Fourth Proportional to 66,300.60, 91,491.98 and 36,085.98

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Solution

The fourth proportional to 66,300.60, 91,491.98 and 36,085.98 is: 49,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300.60 : 91,491.98 = 36,085.98 : x
  2. Step 2: Convert to fraction form
    66,300.60/91,491.98 = 36,085.98/x
  3. Step 3: Cross multiply
    66,300.60x = 91,491.98 × 36,085.98
  4. Step 4: Simplify right side
    66,300.60x = 3,301,577,760.44
  5. Step 5: Solve for x
    x = 3,301,577,760.44/66,300.60
  6. Step 6: Final answer
    x = 49,797.10

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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.