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Finding the Fourth Proportional to 53,578.84, 73,938 and 29,705.08

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Solution

The fourth proportional to 53,578.84, 73,938 and 29,705.08 is: 40,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,578.84 : 73,938 = 29,705.08 : x
  2. Step 2: Convert to fraction form
    53,578.84/73,938 = 29,705.08/x
  3. Step 3: Cross multiply
    53,578.84x = 73,938 × 29,705.08
  4. Step 4: Simplify right side
    53,578.84x = 2,196,334,205.04
  5. Step 5: Solve for x
    x = 2,196,334,205.04/53,578.84
  6. Step 6: Final answer
    x = 40,992.57

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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.