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Finding the Fourth Proportional to 66,323.56, 91,491.60 and 41,129.32

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Solution

The fourth proportional to 66,323.56, 91,491.60 and 41,129.32 is: 56,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,323.56 : 91,491.60 = 41,129.32 : x
  2. Step 2: Convert to fraction form
    66,323.56/91,491.60 = 41,129.32/x
  3. Step 3: Cross multiply
    66,323.56x = 91,491.60 × 41,129.32
  4. Step 4: Simplify right side
    66,323.56x = 3,762,987,293.71
  5. Step 5: Solve for x
    x = 3,762,987,293.71/66,323.56
  6. Step 6: Final answer
    x = 56,736.81

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1.5x scale

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.