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Finding the Fourth Proportional to 70,696.85, 97,563.53 and 38,433.64

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Solution

The fourth proportional to 70,696.85, 97,563.53 and 38,433.64 is: 53,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.85 : 97,563.53 = 38,433.64 : x
  2. Step 2: Convert to fraction form
    70,696.85/97,563.53 = 38,433.64/x
  3. Step 3: Cross multiply
    70,696.85x = 97,563.53 × 38,433.64
  4. Step 4: Simplify right side
    70,696.85x = 3,749,721,589.15
  5. Step 5: Solve for x
    x = 3,749,721,589.15/70,696.85
  6. Step 6: Final answer
    x = 53,039.44

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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.