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Finding the Fourth Proportional to 1,292.41, 1,935.33 and 852.33

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Solution

The fourth proportional to 1,292.41, 1,935.33 and 852.33 is: 1,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.41 : 1,935.33 = 852.33 : x
  2. Step 2: Convert to fraction form
    1,292.41/1,935.33 = 852.33/x
  3. Step 3: Cross multiply
    1,292.41x = 1,935.33 × 852.33
  4. Step 4: Simplify right side
    1,292.41x = 1,649,539.82
  5. Step 5: Solve for x
    x = 1,649,539.82/1,292.41
  6. Step 6: Final answer
    x = 1,276.33

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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.