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Finding the Fourth Proportional to 71,369.44, 98,485.95 and 39,536.44

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Solution

The fourth proportional to 71,369.44, 98,485.95 and 39,536.44 is: 54,558.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.44 : 98,485.95 = 39,536.44 : x
  2. Step 2: Convert to fraction form
    71,369.44/98,485.95 = 39,536.44/x
  3. Step 3: Cross multiply
    71,369.44x = 98,485.95 × 39,536.44
  4. Step 4: Simplify right side
    71,369.44x = 3,893,783,853.02
  5. Step 5: Solve for x
    x = 3,893,783,853.02/71,369.44
  6. Step 6: Final answer
    x = 54,558.14

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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.