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Finding the Fourth Proportional to 52,071.03, 71,858 and 28,197.69

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Solution

The fourth proportional to 52,071.03, 71,858 and 28,197.69 is: 38,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,071.03 : 71,858 = 28,197.69 : x
  2. Step 2: Convert to fraction form
    52,071.03/71,858 = 28,197.69/x
  3. Step 3: Cross multiply
    52,071.03x = 71,858 × 28,197.69
  4. Step 4: Simplify right side
    52,071.03x = 2,026,229,608.02
  5. Step 5: Solve for x
    x = 2,026,229,608.02/52,071.03
  6. Step 6: Final answer
    x = 38,912.80

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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.