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Finding the Fourth Proportional to 4,187.70, 6,281.55 and 3,701.70

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Solution

The fourth proportional to 4,187.70, 6,281.55 and 3,701.70 is: 5,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.70 : 6,281.55 = 3,701.70 : x
  2. Step 2: Convert to fraction form
    4,187.70/6,281.55 = 3,701.70/x
  3. Step 3: Cross multiply
    4,187.70x = 6,281.55 × 3,701.70
  4. Step 4: Simplify right side
    4,187.70x = 23,252,413.64
  5. Step 5: Solve for x
    x = 23,252,413.64/4,187.70
  6. Step 6: Final answer
    x = 5,552.55

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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.