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Finding the Fourth Proportional to 28,695.43, 43,043.92 and 8,973.99

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Solution

The fourth proportional to 28,695.43, 43,043.92 and 8,973.99 is: 13,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.43 : 43,043.92 = 8,973.99 : x
  2. Step 2: Convert to fraction form
    28,695.43/43,043.92 = 8,973.99/x
  3. Step 3: Cross multiply
    28,695.43x = 43,043.92 × 8,973.99
  4. Step 4: Simplify right side
    28,695.43x = 386,275,555.16
  5. Step 5: Solve for x
    x = 386,275,555.16/28,695.43
  6. Step 6: Final answer
    x = 13,461.22

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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.