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Finding the Fourth Proportional to 51,297.51, 70,794.14 and 28,640.96

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Solution

The fourth proportional to 51,297.51, 70,794.14 and 28,640.96 is: 39,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,297.51 : 70,794.14 = 28,640.96 : x
  2. Step 2: Convert to fraction form
    51,297.51/70,794.14 = 28,640.96/x
  3. Step 3: Cross multiply
    51,297.51x = 70,794.14 × 28,640.96
  4. Step 4: Simplify right side
    51,297.51x = 2,027,611,900.28
  5. Step 5: Solve for x
    x = 2,027,611,900.28/51,297.51
  6. Step 6: Final answer
    x = 39,526.51

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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.