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Finding the Fourth Proportional to 14,582.80, 21,872.04 and 4,722.94

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Solution

The fourth proportional to 14,582.80, 21,872.04 and 4,722.94 is: 7,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,582.80 : 21,872.04 = 4,722.94 : x
  2. Step 2: Convert to fraction form
    14,582.80/21,872.04 = 4,722.94/x
  3. Step 3: Cross multiply
    14,582.80x = 21,872.04 × 4,722.94
  4. Step 4: Simplify right side
    14,582.80x = 103,300,332.60
  5. Step 5: Solve for x
    x = 103,300,332.60/14,582.80
  6. Step 6: Final answer
    x = 7,083.71

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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.