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Finding the Fourth Proportional to 1,594, 2,200.26 and 1,129.60

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Solution

The fourth proportional to 1,594, 2,200.26 and 1,129.60 is: 1,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594 : 2,200.26 = 1,129.60 : x
  2. Step 2: Convert to fraction form
    1,594/2,200.26 = 1,129.60/x
  3. Step 3: Cross multiply
    1,594x = 2,200.26 × 1,129.60
  4. Step 4: Simplify right side
    1,594x = 2,485,413.70
  5. Step 5: Solve for x
    x = 2,485,413.70/1,594
  6. Step 6: Final answer
    x = 1,559.23

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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.