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Finding the Fourth Proportional to 7,245.72, 9,995.54 and 4,726.67

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Solution

The fourth proportional to 7,245.72, 9,995.54 and 4,726.67 is: 6,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.72 : 9,995.54 = 4,726.67 : x
  2. Step 2: Convert to fraction form
    7,245.72/9,995.54 = 4,726.67/x
  3. Step 3: Cross multiply
    7,245.72x = 9,995.54 × 4,726.67
  4. Step 4: Simplify right side
    7,245.72x = 47,245,545.44
  5. Step 5: Solve for x
    x = 47,245,545.44/7,245.72
  6. Step 6: Final answer
    x = 6,520.48

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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.