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Finding the Fourth Proportional to 1,728.07, 2,592.05 and 948.44

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Solution

The fourth proportional to 1,728.07, 2,592.05 and 948.44 is: 1,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.07 : 2,592.05 = 948.44 : x
  2. Step 2: Convert to fraction form
    1,728.07/2,592.05 = 948.44/x
  3. Step 3: Cross multiply
    1,728.07x = 2,592.05 × 948.44
  4. Step 4: Simplify right side
    1,728.07x = 2,458,405.51
  5. Step 5: Solve for x
    x = 2,458,405.51/1,728.07
  6. Step 6: Final answer
    x = 1,422.63

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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.