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Finding the Fourth Proportional to 9,328.76, 13,992.68 and 3,484.91

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Solution

The fourth proportional to 9,328.76, 13,992.68 and 3,484.91 is: 5,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.76 : 13,992.68 = 3,484.91 : x
  2. Step 2: Convert to fraction form
    9,328.76/13,992.68 = 3,484.91/x
  3. Step 3: Cross multiply
    9,328.76x = 13,992.68 × 3,484.91
  4. Step 4: Simplify right side
    9,328.76x = 48,763,143.07
  5. Step 5: Solve for x
    x = 48,763,143.07/9,328.76
  6. Step 6: Final answer
    x = 5,227.19

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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.