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Finding the Fourth Proportional to 61,415.22, 91,975.19 and 35,040

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Solution

The fourth proportional to 61,415.22, 91,975.19 and 35,040 is: 52,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.22 : 91,975.19 = 35,040 : x
  2. Step 2: Convert to fraction form
    61,415.22/91,975.19 = 35,040/x
  3. Step 3: Cross multiply
    61,415.22x = 91,975.19 × 35,040
  4. Step 4: Simplify right side
    61,415.22x = 3,222,810,657.60
  5. Step 5: Solve for x
    x = 3,222,810,657.60/61,415.22
  6. Step 6: Final answer
    x = 52,475.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.