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Finding the Fourth Proportional to 14,404.50, 21,606.76 and 3,460.50

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Solution

The fourth proportional to 14,404.50, 21,606.76 and 3,460.50 is: 5,190.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.50 : 21,606.76 = 3,460.50 : x
  2. Step 2: Convert to fraction form
    14,404.50/21,606.76 = 3,460.50/x
  3. Step 3: Cross multiply
    14,404.50x = 21,606.76 × 3,460.50
  4. Step 4: Simplify right side
    14,404.50x = 74,770,192.98
  5. Step 5: Solve for x
    x = 74,770,192.98/14,404.50
  6. Step 6: Final answer
    x = 5,190.75

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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.