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Finding the Fourth Proportional to 5,017.13, 6,918.93 and 3,607.80

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Solution

The fourth proportional to 5,017.13, 6,918.93 and 3,607.80 is: 4,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.13 : 6,918.93 = 3,607.80 : x
  2. Step 2: Convert to fraction form
    5,017.13/6,918.93 = 3,607.80/x
  3. Step 3: Cross multiply
    5,017.13x = 6,918.93 × 3,607.80
  4. Step 4: Simplify right side
    5,017.13x = 24,962,115.65
  5. Step 5: Solve for x
    x = 24,962,115.65/5,017.13
  6. Step 6: Final answer
    x = 4,975.38

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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.