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Finding the Fourth Proportional to 39,903.91, 59,815.46 and 25,872.82

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Solution

The fourth proportional to 39,903.91, 59,815.46 and 25,872.82 is: 38,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,903.91 : 59,815.46 = 25,872.82 : x
  2. Step 2: Convert to fraction form
    39,903.91/59,815.46 = 25,872.82/x
  3. Step 3: Cross multiply
    39,903.91x = 59,815.46 × 25,872.82
  4. Step 4: Simplify right side
    39,903.91x = 1,547,594,544.94
  5. Step 5: Solve for x
    x = 1,547,594,544.94/39,903.91
  6. Step 6: Final answer
    x = 38,783.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.