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Finding the Fourth Proportional to 29,063.69, 40,119.95 and 19,645.01

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Solution

The fourth proportional to 29,063.69, 40,119.95 and 19,645.01 is: 27,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,063.69 : 40,119.95 = 19,645.01 : x
  2. Step 2: Convert to fraction form
    29,063.69/40,119.95 = 19,645.01/x
  3. Step 3: Cross multiply
    29,063.69x = 40,119.95 × 19,645.01
  4. Step 4: Simplify right side
    29,063.69x = 788,156,720.72
  5. Step 5: Solve for x
    x = 788,156,720.72/29,063.69
  6. Step 6: Final answer
    x = 27,118.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.