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Finding the Fourth Proportional to 69,013.53, 103,615.07 and 35,756.55

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Solution

The fourth proportional to 69,013.53, 103,615.07 and 35,756.55 is: 53,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,013.53 : 103,615.07 = 35,756.55 : x
  2. Step 2: Convert to fraction form
    69,013.53/103,615.07 = 35,756.55/x
  3. Step 3: Cross multiply
    69,013.53x = 103,615.07 × 35,756.55
  4. Step 4: Simplify right side
    69,013.53x = 3,704,917,431.21
  5. Step 5: Solve for x
    x = 3,704,917,431.21/69,013.53
  6. Step 6: Final answer
    x = 53,683.93

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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.