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Finding the Fourth Proportional to 8,723.65, 13,071.51 and 8,493.01

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Solution

The fourth proportional to 8,723.65, 13,071.51 and 8,493.01 is: 12,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.65 : 13,071.51 = 8,493.01 : x
  2. Step 2: Convert to fraction form
    8,723.65/13,071.51 = 8,493.01/x
  3. Step 3: Cross multiply
    8,723.65x = 13,071.51 × 8,493.01
  4. Step 4: Simplify right side
    8,723.65x = 111,016,465.15
  5. Step 5: Solve for x
    x = 111,016,465.15/8,723.65
  6. Step 6: Final answer
    x = 12,725.92

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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.