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Finding the Fourth Proportional to 5,603.16, 8,412.18 and 4,786.68

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Solution

The fourth proportional to 5,603.16, 8,412.18 and 4,786.68 is: 7,186.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.16 : 8,412.18 = 4,786.68 : x
  2. Step 2: Convert to fraction form
    5,603.16/8,412.18 = 4,786.68/x
  3. Step 3: Cross multiply
    5,603.16x = 8,412.18 × 4,786.68
  4. Step 4: Simplify right side
    5,603.16x = 40,266,413.76
  5. Step 5: Solve for x
    x = 40,266,413.76/5,603.16
  6. Step 6: Final answer
    x = 7,186.38

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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.