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Finding the Fourth Proportional to 51,369.26, 70,880.54 and 28,701

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Solution

The fourth proportional to 51,369.26, 70,880.54 and 28,701 is: 39,602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,369.26 : 70,880.54 = 28,701 : x
  2. Step 2: Convert to fraction form
    51,369.26/70,880.54 = 28,701/x
  3. Step 3: Cross multiply
    51,369.26x = 70,880.54 × 28,701
  4. Step 4: Simplify right side
    51,369.26x = 2,034,342,235.04
  5. Step 5: Solve for x
    x = 2,034,342,235.04/51,369.26
  6. Step 6: Final answer
    x = 39,602.33

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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.