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Finding the Fourth Proportional to 66,197.01, 91,353.65 and 35,984.36

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Solution

The fourth proportional to 66,197.01, 91,353.65 and 35,984.36 is: 49,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,197.01 : 91,353.65 = 35,984.36 : x
  2. Step 2: Convert to fraction form
    66,197.01/91,353.65 = 35,984.36/x
  3. Step 3: Cross multiply
    66,197.01x = 91,353.65 × 35,984.36
  4. Step 4: Simplify right side
    66,197.01x = 3,287,301,992.22
  5. Step 5: Solve for x
    x = 3,287,301,992.22/66,197.01
  6. Step 6: Final answer
    x = 49,659.37

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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.