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Finding the Fourth Proportional to 66,585.56, 91,924.98 and 45,395.96

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Solution

The fourth proportional to 66,585.56, 91,924.98 and 45,395.96 is: 62,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,585.56 : 91,924.98 = 45,395.96 : x
  2. Step 2: Convert to fraction form
    66,585.56/91,924.98 = 45,395.96/x
  3. Step 3: Cross multiply
    66,585.56x = 91,924.98 × 45,395.96
  4. Step 4: Simplify right side
    66,585.56x = 4,173,022,715.08
  5. Step 5: Solve for x
    x = 4,173,022,715.08/66,585.56
  6. Step 6: Final answer
    x = 62,671.59

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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.