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Finding the Fourth Proportional to 29,039.47, 43,564.88 and 9,316.51

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Solution

The fourth proportional to 29,039.47, 43,564.88 and 9,316.51 is: 13,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,039.47 : 43,564.88 = 9,316.51 : x
  2. Step 2: Convert to fraction form
    29,039.47/43,564.88 = 9,316.51/x
  3. Step 3: Cross multiply
    29,039.47x = 43,564.88 × 9,316.51
  4. Step 4: Simplify right side
    29,039.47x = 405,872,640.17
  5. Step 5: Solve for x
    x = 405,872,640.17/29,039.47
  6. Step 6: Final answer
    x = 13,976.59

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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.