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Finding the Fourth Proportional to 1,706.58, 2,556.09 and 1,055.88

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Solution

The fourth proportional to 1,706.58, 2,556.09 and 1,055.88 is: 1,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706.58 : 2,556.09 = 1,055.88 : x
  2. Step 2: Convert to fraction form
    1,706.58/2,556.09 = 1,055.88/x
  3. Step 3: Cross multiply
    1,706.58x = 2,556.09 × 1,055.88
  4. Step 4: Simplify right side
    1,706.58x = 2,698,924.31
  5. Step 5: Solve for x
    x = 2,698,924.31/1,706.58
  6. Step 6: Final answer
    x = 1,581.48

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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.