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Finding the Fourth Proportional to 48,698.65, 73,040.66 and 15,414.40

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Solution

The fourth proportional to 48,698.65, 73,040.66 and 15,414.40 is: 23,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,698.65 : 73,040.66 = 15,414.40 : x
  2. Step 2: Convert to fraction form
    48,698.65/73,040.66 = 15,414.40/x
  3. Step 3: Cross multiply
    48,698.65x = 73,040.66 × 15,414.40
  4. Step 4: Simplify right side
    48,698.65x = 1,125,877,584.30
  5. Step 5: Solve for x
    x = 1,125,877,584.30/48,698.65
  6. Step 6: Final answer
    x = 23,119.28

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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.