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Finding the Fourth Proportional to 58,903.98, 81,290.91 and 33,411.36

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Solution

The fourth proportional to 58,903.98, 81,290.91 and 33,411.36 is: 46,109.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,903.98 : 81,290.91 = 33,411.36 : x
  2. Step 2: Convert to fraction form
    58,903.98/81,290.91 = 33,411.36/x
  3. Step 3: Cross multiply
    58,903.98x = 81,290.91 × 33,411.36
  4. Step 4: Simplify right side
    58,903.98x = 2,716,039,858.74
  5. Step 5: Solve for x
    x = 2,716,039,858.74/58,903.98
  6. Step 6: Final answer
    x = 46,109.62

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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.