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Finding the Fourth Proportional to 58,899.88, 81,283.66 and 33,407.28

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Solution

The fourth proportional to 58,899.88, 81,283.66 and 33,407.28 is: 46,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,899.88 : 81,283.66 = 33,407.28 : x
  2. Step 2: Convert to fraction form
    58,899.88/81,283.66 = 33,407.28/x
  3. Step 3: Cross multiply
    58,899.88x = 81,283.66 × 33,407.28
  4. Step 4: Simplify right side
    58,899.88x = 2,715,466,113.79
  5. Step 5: Solve for x
    x = 2,715,466,113.79/58,899.88
  6. Step 6: Final answer
    x = 46,103.08

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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.