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Finding the Fourth Proportional to 66,120.03, 91,244.07 and 35,904.06

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Solution

The fourth proportional to 66,120.03, 91,244.07 and 35,904.06 is: 49,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,120.03 : 91,244.07 = 35,904.06 : x
  2. Step 2: Convert to fraction form
    66,120.03/91,244.07 = 35,904.06/x
  3. Step 3: Cross multiply
    66,120.03x = 91,244.07 × 35,904.06
  4. Step 4: Simplify right side
    66,120.03x = 3,276,032,563.92
  5. Step 5: Solve for x
    x = 3,276,032,563.92/66,120.03
  6. Step 6: Final answer
    x = 49,546.75

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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.