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Finding the Fourth Proportional to 35,305.40, 48,722.04 and 19,391.32

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Solution

The fourth proportional to 35,305.40, 48,722.04 and 19,391.32 is: 26,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,305.40 : 48,722.04 = 19,391.32 : x
  2. Step 2: Convert to fraction form
    35,305.40/48,722.04 = 19,391.32/x
  3. Step 3: Cross multiply
    35,305.40x = 48,722.04 × 19,391.32
  4. Step 4: Simplify right side
    35,305.40x = 944,784,668.69
  5. Step 5: Solve for x
    x = 944,784,668.69/35,305.40
  6. Step 6: Final answer
    x = 26,760.34

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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.