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Finding the Fourth Proportional to 69,503.61, 104,254.47 and 16,913.15

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Solution

The fourth proportional to 69,503.61, 104,254.47 and 16,913.15 is: 25,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,503.61 : 104,254.47 = 16,913.15 : x
  2. Step 2: Convert to fraction form
    69,503.61/104,254.47 = 16,913.15/x
  3. Step 3: Cross multiply
    69,503.61x = 104,254.47 × 16,913.15
  4. Step 4: Simplify right side
    69,503.61x = 1,763,270,968.01
  5. Step 5: Solve for x
    x = 1,763,270,968.01/69,503.61
  6. Step 6: Final answer
    x = 25,369.49

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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.