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Finding the Fourth Proportional to 8,047.64, 12,064.96 and 3,114.76

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Solution

The fourth proportional to 8,047.64, 12,064.96 and 3,114.76 is: 4,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.64 : 12,064.96 = 3,114.76 : x
  2. Step 2: Convert to fraction form
    8,047.64/12,064.96 = 3,114.76/x
  3. Step 3: Cross multiply
    8,047.64x = 12,064.96 × 3,114.76
  4. Step 4: Simplify right side
    8,047.64x = 37,579,454.81
  5. Step 5: Solve for x
    x = 37,579,454.81/8,047.64
  6. Step 6: Final answer
    x = 4,669.62

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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.