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Finding the Fourth Proportional to 35,935.93, 53,913.62 and 20,364.49

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Solution

The fourth proportional to 35,935.93, 53,913.62 and 20,364.49 is: 30,552.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,935.93 : 53,913.62 = 20,364.49 : x
  2. Step 2: Convert to fraction form
    35,935.93/53,913.62 = 20,364.49/x
  3. Step 3: Cross multiply
    35,935.93x = 53,913.62 × 20,364.49
  4. Step 4: Simplify right side
    35,935.93x = 1,097,923,375.35
  5. Step 5: Solve for x
    x = 1,097,923,375.35/35,935.93
  6. Step 6: Final answer
    x = 30,552.25

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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.