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Finding the Fourth Proportional to 57,973.98, 86,802.86 and 43,891.40

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Solution

The fourth proportional to 57,973.98, 86,802.86 and 43,891.40 is: 65,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,973.98 : 86,802.86 = 43,891.40 : x
  2. Step 2: Convert to fraction form
    57,973.98/86,802.86 = 43,891.40/x
  3. Step 3: Cross multiply
    57,973.98x = 86,802.86 × 43,891.40
  4. Step 4: Simplify right side
    57,973.98x = 3,809,899,049.40
  5. Step 5: Solve for x
    x = 3,809,899,049.40/57,973.98
  6. Step 6: Final answer
    x = 65,717.40

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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.