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Finding the Fourth Proportional to 9,379.62, 14,065.47 and 2,806.74

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Solution

The fourth proportional to 9,379.62, 14,065.47 and 2,806.74 is: 4,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.62 : 14,065.47 = 2,806.74 : x
  2. Step 2: Convert to fraction form
    9,379.62/14,065.47 = 2,806.74/x
  3. Step 3: Cross multiply
    9,379.62x = 14,065.47 × 2,806.74
  4. Step 4: Simplify right side
    9,379.62x = 39,478,117.27
  5. Step 5: Solve for x
    x = 39,478,117.27/9,379.62
  6. Step 6: Final answer
    x = 4,208.93

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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.