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Finding the Fourth Proportional to 7,075.96, 9,765.26 and 3,932.15

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Solution

The fourth proportional to 7,075.96, 9,765.26 and 3,932.15 is: 5,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.96 : 9,765.26 = 3,932.15 : x
  2. Step 2: Convert to fraction form
    7,075.96/9,765.26 = 3,932.15/x
  3. Step 3: Cross multiply
    7,075.96x = 9,765.26 × 3,932.15
  4. Step 4: Simplify right side
    7,075.96x = 38,398,413.37
  5. Step 5: Solve for x
    x = 38,398,413.37/7,075.96
  6. Step 6: Final answer
    x = 5,426.60

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1.5x scale

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.