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Finding the Fourth Proportional to 7,384.80, 11,078.60 and 2,388.52

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Solution

The fourth proportional to 7,384.80, 11,078.60 and 2,388.52 is: 3,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.80 : 11,078.60 = 2,388.52 : x
  2. Step 2: Convert to fraction form
    7,384.80/11,078.60 = 2,388.52/x
  3. Step 3: Cross multiply
    7,384.80x = 11,078.60 × 2,388.52
  4. Step 4: Simplify right side
    7,384.80x = 26,461,457.67
  5. Step 5: Solve for x
    x = 26,461,457.67/7,384.80
  6. Step 6: Final answer
    x = 3,583.23

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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.