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Finding the Fourth Proportional to 19,511.94, 29,266.88 and 5,472.94

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Solution

The fourth proportional to 19,511.94, 29,266.88 and 5,472.94 is: 8,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.94 : 29,266.88 = 5,472.94 : x
  2. Step 2: Convert to fraction form
    19,511.94/29,266.88 = 5,472.94/x
  3. Step 3: Cross multiply
    19,511.94x = 29,266.88 × 5,472.94
  4. Step 4: Simplify right side
    19,511.94x = 160,175,731.89
  5. Step 5: Solve for x
    x = 160,175,731.89/19,511.94
  6. Step 6: Final answer
    x = 8,209.11

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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.