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Finding the Fourth Proportional to 55,274.67, 82,852.88 and 28,593.80

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Solution

The fourth proportional to 55,274.67, 82,852.88 and 28,593.80 is: 42,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,274.67 : 82,852.88 = 28,593.80 : x
  2. Step 2: Convert to fraction form
    55,274.67/82,852.88 = 28,593.80/x
  3. Step 3: Cross multiply
    55,274.67x = 82,852.88 × 28,593.80
  4. Step 4: Simplify right side
    55,274.67x = 2,369,078,958.76
  5. Step 5: Solve for x
    x = 2,369,078,958.76/55,274.67
  6. Step 6: Final answer
    x = 42,860.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.