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Finding the Fourth Proportional to 1,549.32, 2,324.62 and 855.93

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Solution

The fourth proportional to 1,549.32, 2,324.62 and 855.93 is: 1,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.32 : 2,324.62 = 855.93 : x
  2. Step 2: Convert to fraction form
    1,549.32/2,324.62 = 855.93/x
  3. Step 3: Cross multiply
    1,549.32x = 2,324.62 × 855.93
  4. Step 4: Simplify right side
    1,549.32x = 1,989,702.51
  5. Step 5: Solve for x
    x = 1,989,702.51/1,549.32
  6. Step 6: Final answer
    x = 1,284.24

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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.