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Finding the Fourth Proportional to 61,971.74, 85,520.75 and 35,119.36

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Solution

The fourth proportional to 61,971.74, 85,520.75 and 35,119.36 is: 48,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,971.74 : 85,520.75 = 35,119.36 : x
  2. Step 2: Convert to fraction form
    61,971.74/85,520.75 = 35,119.36/x
  3. Step 3: Cross multiply
    61,971.74x = 85,520.75 × 35,119.36
  4. Step 4: Simplify right side
    61,971.74x = 3,003,433,880.72
  5. Step 5: Solve for x
    x = 3,003,433,880.72/61,971.74
  6. Step 6: Final answer
    x = 48,464.58

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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.