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Finding the Fourth Proportional to 54,546.71, 81,828.77 and 19,018.25

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Solution

The fourth proportional to 54,546.71, 81,828.77 and 19,018.25 is: 28,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,546.71 : 81,828.77 = 19,018.25 : x
  2. Step 2: Convert to fraction form
    54,546.71/81,828.77 = 19,018.25/x
  3. Step 3: Cross multiply
    54,546.71x = 81,828.77 × 19,018.25
  4. Step 4: Simplify right side
    54,546.71x = 1,556,239,950.31
  5. Step 5: Solve for x
    x = 1,556,239,950.31/54,546.71
  6. Step 6: Final answer
    x = 28,530.41

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1.5x scale

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.