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Finding the Fourth Proportional to 9,718.54, 13,413.39 and 5,526.54

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Solution

The fourth proportional to 9,718.54, 13,413.39 and 5,526.54 is: 7,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718.54 : 13,413.39 = 5,526.54 : x
  2. Step 2: Convert to fraction form
    9,718.54/13,413.39 = 5,526.54/x
  3. Step 3: Cross multiply
    9,718.54x = 13,413.39 × 5,526.54
  4. Step 4: Simplify right side
    9,718.54x = 74,129,636.37
  5. Step 5: Solve for x
    x = 74,129,636.37/9,718.54
  6. Step 6: Final answer
    x = 7,627.65

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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.