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Finding the Fourth Proportional to 74,935.37, 103,290.70 and 50,728.70

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Solution

The fourth proportional to 74,935.37, 103,290.70 and 50,728.70 is: 69,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,935.37 : 103,290.70 = 50,728.70 : x
  2. Step 2: Convert to fraction form
    74,935.37/103,290.70 = 50,728.70/x
  3. Step 3: Cross multiply
    74,935.37x = 103,290.70 × 50,728.70
  4. Step 4: Simplify right side
    74,935.37x = 5,239,802,933.09
  5. Step 5: Solve for x
    x = 5,239,802,933.09/74,935.37
  6. Step 6: Final answer
    x = 69,924.30

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1.5x scale

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.