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Finding the Fourth Proportional to 9,370.98, 12,930.98 and 5,392.67

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Solution

The fourth proportional to 9,370.98, 12,930.98 and 5,392.67 is: 7,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.98 : 12,930.98 = 5,392.67 : x
  2. Step 2: Convert to fraction form
    9,370.98/12,930.98 = 5,392.67/x
  3. Step 3: Cross multiply
    9,370.98x = 12,930.98 × 5,392.67
  4. Step 4: Simplify right side
    9,370.98x = 69,732,416.30
  5. Step 5: Solve for x
    x = 69,732,416.30/9,370.98
  6. Step 6: Final answer
    x = 7,441.32

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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.