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Finding the Fourth Proportional to 19,346, 29,021.48 and 5,495.36

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Solution

The fourth proportional to 19,346, 29,021.48 and 5,495.36 is: 8,243.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,346 : 29,021.48 = 5,495.36 : x
  2. Step 2: Convert to fraction form
    19,346/29,021.48 = 5,495.36/x
  3. Step 3: Cross multiply
    19,346x = 29,021.48 × 5,495.36
  4. Step 4: Simplify right side
    19,346x = 159,483,480.33
  5. Step 5: Solve for x
    x = 159,483,480.33/19,346
  6. Step 6: Final answer
    x = 8,243.74

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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.