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Finding the Fourth Proportional to 19,818.88, 29,726.80 and 7,333.03

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Solution

The fourth proportional to 19,818.88, 29,726.80 and 7,333.03 is: 10,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.88 : 29,726.80 = 7,333.03 : x
  2. Step 2: Convert to fraction form
    19,818.88/29,726.80 = 7,333.03/x
  3. Step 3: Cross multiply
    19,818.88x = 29,726.80 × 7,333.03
  4. Step 4: Simplify right side
    19,818.88x = 217,987,516.20
  5. Step 5: Solve for x
    x = 217,987,516.20/19,818.88
  6. Step 6: Final answer
    x = 10,998.98

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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.