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Finding the Fourth Proportional to 14,034.50, 21,051.78 and 4,800.50

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Solution

The fourth proportional to 14,034.50, 21,051.78 and 4,800.50 is: 7,200.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,034.50 : 21,051.78 = 4,800.50 : x
  2. Step 2: Convert to fraction form
    14,034.50/21,051.78 = 4,800.50/x
  3. Step 3: Cross multiply
    14,034.50x = 21,051.78 × 4,800.50
  4. Step 4: Simplify right side
    14,034.50x = 101,059,069.89
  5. Step 5: Solve for x
    x = 101,059,069.89/14,034.50
  6. Step 6: Final answer
    x = 7,200.76

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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.