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Finding the Fourth Proportional to 58,729.20, 81,018.60 and 33,564

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Solution

The fourth proportional to 58,729.20, 81,018.60 and 33,564 is: 46,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,729.20 : 81,018.60 = 33,564 : x
  2. Step 2: Convert to fraction form
    58,729.20/81,018.60 = 33,564/x
  3. Step 3: Cross multiply
    58,729.20x = 81,018.60 × 33,564
  4. Step 4: Simplify right side
    58,729.20x = 2,719,308,290.40
  5. Step 5: Solve for x
    x = 2,719,308,290.40/58,729.20
  6. Step 6: Final answer
    x = 46,302.49

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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.