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Finding the Fourth Proportional to 36,070.20, 54,064.80 and 17,359.20

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Solution

The fourth proportional to 36,070.20, 54,064.80 and 17,359.20 is: 26,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,070.20 : 54,064.80 = 17,359.20 : x
  2. Step 2: Convert to fraction form
    36,070.20/54,064.80 = 17,359.20/x
  3. Step 3: Cross multiply
    36,070.20x = 54,064.80 × 17,359.20
  4. Step 4: Simplify right side
    36,070.20x = 938,521,676.16
  5. Step 5: Solve for x
    x = 938,521,676.16/36,070.20
  6. Step 6: Final answer
    x = 26,019.31

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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.