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Finding the Fourth Proportional to 14,349, 21,523.50 and 4,621

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Solution

The fourth proportional to 14,349, 21,523.50 and 4,621 is: 6,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,349 : 21,523.50 = 4,621 : x
  2. Step 2: Convert to fraction form
    14,349/21,523.50 = 4,621/x
  3. Step 3: Cross multiply
    14,349x = 21,523.50 × 4,621
  4. Step 4: Simplify right side
    14,349x = 99,460,093.50
  5. Step 5: Solve for x
    x = 99,460,093.50/14,349
  6. Step 6: Final answer
    x = 6,931.50

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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.