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Finding the Fourth Proportional to 29,576.88, 40,829.40 and 19,511.28

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Solution

The fourth proportional to 29,576.88, 40,829.40 and 19,511.28 is: 26,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,576.88 : 40,829.40 = 19,511.28 : x
  2. Step 2: Convert to fraction form
    29,576.88/40,829.40 = 19,511.28/x
  3. Step 3: Cross multiply
    29,576.88x = 40,829.40 × 19,511.28
  4. Step 4: Simplify right side
    29,576.88x = 796,633,855.63
  5. Step 5: Solve for x
    x = 796,633,855.63/29,576.88
  6. Step 6: Final answer
    x = 26,934.34

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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.