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Finding the Fourth Proportional to 1,352.34, 1,866.06 and 793

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Solution

The fourth proportional to 1,352.34, 1,866.06 and 793 is: 1,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.34 : 1,866.06 = 793 : x
  2. Step 2: Convert to fraction form
    1,352.34/1,866.06 = 793/x
  3. Step 3: Cross multiply
    1,352.34x = 1,866.06 × 793
  4. Step 4: Simplify right side
    1,352.34x = 1,479,785.58
  5. Step 5: Solve for x
    x = 1,479,785.58/1,352.34
  6. Step 6: Final answer
    x = 1,094.24

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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.