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Finding the Fourth Proportional to 58,851.90, 81,213.87 and 33,360.60

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Solution

The fourth proportional to 58,851.90, 81,213.87 and 33,360.60 is: 46,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,851.90 : 81,213.87 = 33,360.60 : x
  2. Step 2: Convert to fraction form
    58,851.90/81,213.87 = 33,360.60/x
  3. Step 3: Cross multiply
    58,851.90x = 81,213.87 × 33,360.60
  4. Step 4: Simplify right side
    58,851.90x = 2,709,343,431.52
  5. Step 5: Solve for x
    x = 2,709,343,431.52/58,851.90
  6. Step 6: Final answer
    x = 46,036.63

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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.