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Finding the Fourth Proportional to 66,095.60, 91,213.04 and 35,880.92

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Solution

The fourth proportional to 66,095.60, 91,213.04 and 35,880.92 is: 49,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,095.60 : 91,213.04 = 35,880.92 : x
  2. Step 2: Convert to fraction form
    66,095.60/91,213.04 = 35,880.92/x
  3. Step 3: Cross multiply
    66,095.60x = 91,213.04 × 35,880.92
  4. Step 4: Simplify right side
    66,095.60x = 3,272,807,872.05
  5. Step 5: Solve for x
    x = 3,272,807,872.05/66,095.60
  6. Step 6: Final answer
    x = 49,516.27

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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.