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Finding the Fourth Proportional to 34,368.49, 51,519.93 and 14,619.88

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Solution

The fourth proportional to 34,368.49, 51,519.93 and 14,619.88 is: 21,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,368.49 : 51,519.93 = 14,619.88 : x
  2. Step 2: Convert to fraction form
    34,368.49/51,519.93 = 14,619.88/x
  3. Step 3: Cross multiply
    34,368.49x = 51,519.93 × 14,619.88
  4. Step 4: Simplify right side
    34,368.49x = 753,215,194.21
  5. Step 5: Solve for x
    x = 753,215,194.21/34,368.49
  6. Step 6: Final answer
    x = 21,915.87

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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.