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Finding the Fourth Proportional to 51,967.71, 71,717.54 and 28,999.54

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Solution

The fourth proportional to 51,967.71, 71,717.54 and 28,999.54 is: 40,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,967.71 : 71,717.54 = 28,999.54 : x
  2. Step 2: Convert to fraction form
    51,967.71/71,717.54 = 28,999.54/x
  3. Step 3: Cross multiply
    51,967.71x = 71,717.54 × 28,999.54
  4. Step 4: Simplify right side
    51,967.71x = 2,079,775,614.58
  5. Step 5: Solve for x
    x = 2,079,775,614.58/51,967.71
  6. Step 6: Final answer
    x = 40,020.54

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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.