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Finding the Fourth Proportional to 1,235.24, 1,705.14 and 793.16

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Solution

The fourth proportional to 1,235.24, 1,705.14 and 793.16 is: 1,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.24 : 1,705.14 = 793.16 : x
  2. Step 2: Convert to fraction form
    1,235.24/1,705.14 = 793.16/x
  3. Step 3: Cross multiply
    1,235.24x = 1,705.14 × 793.16
  4. Step 4: Simplify right side
    1,235.24x = 1,352,448.84
  5. Step 5: Solve for x
    x = 1,352,448.84/1,235.24
  6. Step 6: Final answer
    x = 1,094.89

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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.