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Finding the Fourth Proportional to 8,507.93, 12,762.57 and 2,664.50

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Solution

The fourth proportional to 8,507.93, 12,762.57 and 2,664.50 is: 3,996.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.93 : 12,762.57 = 2,664.50 : x
  2. Step 2: Convert to fraction form
    8,507.93/12,762.57 = 2,664.50/x
  3. Step 3: Cross multiply
    8,507.93x = 12,762.57 × 2,664.50
  4. Step 4: Simplify right side
    8,507.93x = 34,005,867.77
  5. Step 5: Solve for x
    x = 34,005,867.77/8,507.93
  6. Step 6: Final answer
    x = 3,996.96

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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.