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Finding the Fourth Proportional to 58,643.88, 87,969.78 and 29,053.77

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Solution

The fourth proportional to 58,643.88, 87,969.78 and 29,053.77 is: 43,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,643.88 : 87,969.78 = 29,053.77 : x
  2. Step 2: Convert to fraction form
    58,643.88/87,969.78 = 29,053.77/x
  3. Step 3: Cross multiply
    58,643.88x = 87,969.78 × 29,053.77
  4. Step 4: Simplify right side
    58,643.88x = 2,555,853,755.07
  5. Step 5: Solve for x
    x = 2,555,853,755.07/58,643.88
  6. Step 6: Final answer
    x = 43,582.62

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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.