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Finding the Fourth Proportional to 9,954.55, 13,734.79 and 6,413.50

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Solution

The fourth proportional to 9,954.55, 13,734.79 and 6,413.50 is: 8,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,954.55 : 13,734.79 = 6,413.50 : x
  2. Step 2: Convert to fraction form
    9,954.55/13,734.79 = 6,413.50/x
  3. Step 3: Cross multiply
    9,954.55x = 13,734.79 × 6,413.50
  4. Step 4: Simplify right side
    9,954.55x = 88,088,075.67
  5. Step 5: Solve for x
    x = 88,088,075.67/9,954.55
  6. Step 6: Final answer
    x = 8,849.03

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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.