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Finding the Fourth Proportional to 35,455.70, 48,928.61 and 19,540.16

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Solution

The fourth proportional to 35,455.70, 48,928.61 and 19,540.16 is: 26,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,455.70 : 48,928.61 = 19,540.16 : x
  2. Step 2: Convert to fraction form
    35,455.70/48,928.61 = 19,540.16/x
  3. Step 3: Cross multiply
    35,455.70x = 48,928.61 × 19,540.16
  4. Step 4: Simplify right side
    35,455.70x = 956,072,623.33
  5. Step 5: Solve for x
    x = 956,072,623.33/35,455.70
  6. Step 6: Final answer
    x = 26,965.28

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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.