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Finding the Fourth Proportional to 52,615.76, 72,611.34 and 28,743.97

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Solution

The fourth proportional to 52,615.76, 72,611.34 and 28,743.97 is: 39,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,615.76 : 72,611.34 = 28,743.97 : x
  2. Step 2: Convert to fraction form
    52,615.76/72,611.34 = 28,743.97/x
  3. Step 3: Cross multiply
    52,615.76x = 72,611.34 × 28,743.97
  4. Step 4: Simplify right side
    52,615.76x = 2,087,137,997.09
  5. Step 5: Solve for x
    x = 2,087,137,997.09/52,615.76
  6. Step 6: Final answer
    x = 39,667.55

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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.