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Finding the Fourth Proportional to 7,673.91, 10,583.76 and 6,624.15

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Solution

The fourth proportional to 7,673.91, 10,583.76 and 6,624.15 is: 9,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.91 : 10,583.76 = 6,624.15 : x
  2. Step 2: Convert to fraction form
    7,673.91/10,583.76 = 6,624.15/x
  3. Step 3: Cross multiply
    7,673.91x = 10,583.76 × 6,624.15
  4. Step 4: Simplify right side
    7,673.91x = 70,108,413.80
  5. Step 5: Solve for x
    x = 70,108,413.80/7,673.91
  6. Step 6: Final answer
    x = 9,135.94

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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.