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Finding the Fourth Proportional to 1,053.86, 1,450.25 and 1,023.18

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Solution

The fourth proportional to 1,053.86, 1,450.25 and 1,023.18 is: 1,408.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.86 : 1,450.25 = 1,023.18 : x
  2. Step 2: Convert to fraction form
    1,053.86/1,450.25 = 1,023.18/x
  3. Step 3: Cross multiply
    1,053.86x = 1,450.25 × 1,023.18
  4. Step 4: Simplify right side
    1,053.86x = 1,483,873.99
  5. Step 5: Solve for x
    x = 1,483,873.99/1,053.86
  6. Step 6: Final answer
    x = 1,408.04

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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.