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Finding the Fourth Proportional to 18,362,472.40, 27,543,708.60 and 17,228,731.60

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Solution

The fourth proportional to 18,362,472.40, 27,543,708.60 and 17,228,731.60 is: 25,843,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362,472.40 : 27,543,708.60 = 17,228,731.60 : x
  2. Step 2: Convert to fraction form
    18,362,472.40/27,543,708.60 = 17,228,731.60/x
  3. Step 3: Cross multiply
    18,362,472.40x = 27,543,708.60 × 17,228,731.60
  4. Step 4: Simplify right side
    18,362,472.40x = 474,543,162,738,011.81
  5. Step 5: Solve for x
    x = 474,543,162,738,011.81/18,362,472.40
  6. Step 6: Final answer
    x = 25,843,097.40

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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.