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Finding the Fourth Proportional to 46,554, 69,832.56 and 18,479.28

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Solution

The fourth proportional to 46,554, 69,832.56 and 18,479.28 is: 27,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,554 : 69,832.56 = 18,479.28 : x
  2. Step 2: Convert to fraction form
    46,554/69,832.56 = 18,479.28/x
  3. Step 3: Cross multiply
    46,554x = 69,832.56 × 18,479.28
  4. Step 4: Simplify right side
    46,554x = 1,290,455,429.36
  5. Step 5: Solve for x
    x = 1,290,455,429.36/46,554
  6. Step 6: Final answer
    x = 27,719.54

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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.