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Finding the Fourth Proportional to 35,308.10, 48,724.07 and 19,391.54

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Solution

The fourth proportional to 35,308.10, 48,724.07 and 19,391.54 is: 26,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,308.10 : 48,724.07 = 19,391.54 : x
  2. Step 2: Convert to fraction form
    35,308.10/48,724.07 = 19,391.54/x
  3. Step 3: Cross multiply
    35,308.10x = 48,724.07 × 19,391.54
  4. Step 4: Simplify right side
    35,308.10x = 944,834,411.79
  5. Step 5: Solve for x
    x = 944,834,411.79/35,308.10
  6. Step 6: Final answer
    x = 26,759.71

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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.