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Finding the Fourth Proportional to 66,175.50, 91,322.73 and 35,960.81

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Solution

The fourth proportional to 66,175.50, 91,322.73 and 35,960.81 is: 49,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,175.50 : 91,322.73 = 35,960.81 : x
  2. Step 2: Convert to fraction form
    66,175.50/91,322.73 = 35,960.81/x
  3. Step 3: Cross multiply
    66,175.50x = 91,322.73 × 35,960.81
  4. Step 4: Simplify right side
    66,175.50x = 3,284,038,885.60
  5. Step 5: Solve for x
    x = 3,284,038,885.60/66,175.50
  6. Step 6: Final answer
    x = 49,626.20

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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.