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Finding the Fourth Proportional to 15,703.63, 23,558.91 and 8,693.87

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Solution

The fourth proportional to 15,703.63, 23,558.91 and 8,693.87 is: 13,042.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.63 : 23,558.91 = 8,693.87 : x
  2. Step 2: Convert to fraction form
    15,703.63/23,558.91 = 8,693.87/x
  3. Step 3: Cross multiply
    15,703.63x = 23,558.91 × 8,693.87
  4. Step 4: Simplify right side
    15,703.63x = 204,818,100.88
  5. Step 5: Solve for x
    x = 204,818,100.88/15,703.63
  6. Step 6: Final answer
    x = 13,042.72

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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.