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Finding the Fourth Proportional to 19,656.22, 29,483.98 and 4,865.13

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Solution

The fourth proportional to 19,656.22, 29,483.98 and 4,865.13 is: 7,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.22 : 29,483.98 = 4,865.13 : x
  2. Step 2: Convert to fraction form
    19,656.22/29,483.98 = 4,865.13/x
  3. Step 3: Cross multiply
    19,656.22x = 29,483.98 × 4,865.13
  4. Step 4: Simplify right side
    19,656.22x = 143,443,395.62
  5. Step 5: Solve for x
    x = 143,443,395.62/19,656.22
  6. Step 6: Final answer
    x = 7,297.61

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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.