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Finding the Fourth Proportional to 5,703.75, 8,555.63 and 2,928.88

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Solution

The fourth proportional to 5,703.75, 8,555.63 and 2,928.88 is: 4,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.75 : 8,555.63 = 2,928.88 : x
  2. Step 2: Convert to fraction form
    5,703.75/8,555.63 = 2,928.88/x
  3. Step 3: Cross multiply
    5,703.75x = 8,555.63 × 2,928.88
  4. Step 4: Simplify right side
    5,703.75x = 25,058,413.59
  5. Step 5: Solve for x
    x = 25,058,413.59/5,703.75
  6. Step 6: Final answer
    x = 4,393.32

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1.5x scale

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.