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Finding the Fourth Proportional to 14,558.76, 21,838.12 and 3,614.76

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Solution

The fourth proportional to 14,558.76, 21,838.12 and 3,614.76 is: 5,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.76 : 21,838.12 = 3,614.76 : x
  2. Step 2: Convert to fraction form
    14,558.76/21,838.12 = 3,614.76/x
  3. Step 3: Cross multiply
    14,558.76x = 21,838.12 × 3,614.76
  4. Step 4: Simplify right side
    14,558.76x = 78,939,562.65
  5. Step 5: Solve for x
    x = 78,939,562.65/14,558.76
  6. Step 6: Final answer
    x = 5,422.14

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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.