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Finding the Fourth Proportional to 62,400.16, 93,584.16 and 18,018.40

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Solution

The fourth proportional to 62,400.16, 93,584.16 and 18,018.40 is: 27,022.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,400.16 : 93,584.16 = 18,018.40 : x
  2. Step 2: Convert to fraction form
    62,400.16/93,584.16 = 18,018.40/x
  3. Step 3: Cross multiply
    62,400.16x = 93,584.16 × 18,018.40
  4. Step 4: Simplify right side
    62,400.16x = 1,686,236,828.54
  5. Step 5: Solve for x
    x = 1,686,236,828.54/62,400.16
  6. Step 6: Final answer
    x = 27,022.96

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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.