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Finding the Fourth Proportional to 51,489.48, 71,052.02 and 28,824.64

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Solution

The fourth proportional to 51,489.48, 71,052.02 and 28,824.64 is: 39,776.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.48 : 71,052.02 = 28,824.64 : x
  2. Step 2: Convert to fraction form
    51,489.48/71,052.02 = 28,824.64/x
  3. Step 3: Cross multiply
    51,489.48x = 71,052.02 × 28,824.64
  4. Step 4: Simplify right side
    51,489.48x = 2,048,048,897.77
  5. Step 5: Solve for x
    x = 2,048,048,897.77/51,489.48
  6. Step 6: Final answer
    x = 39,776.06

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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.