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Finding the Fourth Proportional to 14,441.92, 19,929.83 and 8,154.29

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Solution

The fourth proportional to 14,441.92, 19,929.83 and 8,154.29 is: 11,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,441.92 : 19,929.83 = 8,154.29 : x
  2. Step 2: Convert to fraction form
    14,441.92/19,929.83 = 8,154.29/x
  3. Step 3: Cross multiply
    14,441.92x = 19,929.83 × 8,154.29
  4. Step 4: Simplify right side
    14,441.92x = 162,513,622.52
  5. Step 5: Solve for x
    x = 162,513,622.52/14,441.92
  6. Step 6: Final answer
    x = 11,252.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.