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Finding the Fourth Proportional to 48,752.19, 73,128.28 and 11,816.19

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Solution

The fourth proportional to 48,752.19, 73,128.28 and 11,816.19 is: 17,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,752.19 : 73,128.28 = 11,816.19 : x
  2. Step 2: Convert to fraction form
    48,752.19/73,128.28 = 11,816.19/x
  3. Step 3: Cross multiply
    48,752.19x = 73,128.28 × 11,816.19
  4. Step 4: Simplify right side
    48,752.19x = 864,097,497.57
  5. Step 5: Solve for x
    x = 864,097,497.57/48,752.19
  6. Step 6: Final answer
    x = 17,724.28

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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.