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Finding the Fourth Proportional to 35,455.57, 48,928.43 and 19,540.04

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Solution

The fourth proportional to 35,455.57, 48,928.43 and 19,540.04 is: 26,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,455.57 : 48,928.43 = 19,540.04 : x
  2. Step 2: Convert to fraction form
    35,455.57/48,928.43 = 19,540.04/x
  3. Step 3: Cross multiply
    35,455.57x = 48,928.43 × 19,540.04
  4. Step 4: Simplify right side
    35,455.57x = 956,063,283.55
  5. Step 5: Solve for x
    x = 956,063,283.55/35,455.57
  6. Step 6: Final answer
    x = 26,965.11

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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.