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Finding the Fourth Proportional to 66,019.66, 91,107.18 and 35,804.97

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Solution

The fourth proportional to 66,019.66, 91,107.18 and 35,804.97 is: 49,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,019.66 : 91,107.18 = 35,804.97 : x
  2. Step 2: Convert to fraction form
    66,019.66/91,107.18 = 35,804.97/x
  3. Step 3: Cross multiply
    66,019.66x = 91,107.18 × 35,804.97
  4. Step 4: Simplify right side
    66,019.66x = 3,262,089,846.68
  5. Step 5: Solve for x
    x = 3,262,089,846.68/66,019.66
  6. Step 6: Final answer
    x = 49,410.89

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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.