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Finding the Fourth Proportional to 18,280, 27,424.32 and 5,968

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Solution

The fourth proportional to 18,280, 27,424.32 and 5,968 is: 8,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280 : 27,424.32 = 5,968 : x
  2. Step 2: Convert to fraction form
    18,280/27,424.32 = 5,968/x
  3. Step 3: Cross multiply
    18,280x = 27,424.32 × 5,968
  4. Step 4: Simplify right side
    18,280x = 163,668,341.76
  5. Step 5: Solve for x
    x = 163,668,341.76/18,280
  6. Step 6: Final answer
    x = 8,953.41

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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.