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Finding the Fourth Proportional to 14,153.47, 21,230.12 and 3,623.47

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Solution

The fourth proportional to 14,153.47, 21,230.12 and 3,623.47 is: 5,435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.47 : 21,230.12 = 3,623.47 : x
  2. Step 2: Convert to fraction form
    14,153.47/21,230.12 = 3,623.47/x
  3. Step 3: Cross multiply
    14,153.47x = 21,230.12 × 3,623.47
  4. Step 4: Simplify right side
    14,153.47x = 76,926,596.77
  5. Step 5: Solve for x
    x = 76,926,596.77/14,153.47
  6. Step 6: Final answer
    x = 5,435.18

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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.