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Finding the Fourth Proportional to 66,089.52, 91,201.06 and 35,874.19

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Solution

The fourth proportional to 66,089.52, 91,201.06 and 35,874.19 is: 49,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,089.52 : 91,201.06 = 35,874.19 : x
  2. Step 2: Convert to fraction form
    66,089.52/91,201.06 = 35,874.19/x
  3. Step 3: Cross multiply
    66,089.52x = 91,201.06 × 35,874.19
  4. Step 4: Simplify right side
    66,089.52x = 3,271,764,154.64
  5. Step 5: Solve for x
    x = 3,271,764,154.64/66,089.52
  6. Step 6: Final answer
    x = 49,505.04

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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.