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Finding the Fourth Proportional to 7,413.15, 11,045.10 and 7,306.23

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Solution

The fourth proportional to 7,413.15, 11,045.10 and 7,306.23 is: 10,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.15 : 11,045.10 = 7,306.23 : x
  2. Step 2: Convert to fraction form
    7,413.15/11,045.10 = 7,306.23/x
  3. Step 3: Cross multiply
    7,413.15x = 11,045.10 × 7,306.23
  4. Step 4: Simplify right side
    7,413.15x = 80,698,040.97
  5. Step 5: Solve for x
    x = 80,698,040.97/7,413.15
  6. Step 6: Final answer
    x = 10,885.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.