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Finding the Fourth Proportional to 1,852.36, 2,556.36 and 1,055.72

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Solution

The fourth proportional to 1,852.36, 2,556.36 and 1,055.72 is: 1,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.36 : 2,556.36 = 1,055.72 : x
  2. Step 2: Convert to fraction form
    1,852.36/2,556.36 = 1,055.72/x
  3. Step 3: Cross multiply
    1,852.36x = 2,556.36 × 1,055.72
  4. Step 4: Simplify right side
    1,852.36x = 2,698,800.38
  5. Step 5: Solve for x
    x = 2,698,800.38/1,852.36
  6. Step 6: Final answer
    x = 1,456.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.