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Finding the Fourth Proportional to 14,592.69, 21,870.68 and 7,929.09

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Solution

The fourth proportional to 14,592.69, 21,870.68 and 7,929.09 is: 11,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,592.69 : 21,870.68 = 7,929.09 : x
  2. Step 2: Convert to fraction form
    14,592.69/21,870.68 = 7,929.09/x
  3. Step 3: Cross multiply
    14,592.69x = 21,870.68 × 7,929.09
  4. Step 4: Simplify right side
    14,592.69x = 173,414,550.44
  5. Step 5: Solve for x
    x = 173,414,550.44/14,592.69
  6. Step 6: Final answer
    x = 11,883.66

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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.