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Finding the Fourth Proportional to 7,903.53, 11,856.12 and 2,709.81

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Solution

The fourth proportional to 7,903.53, 11,856.12 and 2,709.81 is: 4,065.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.53 : 11,856.12 = 2,709.81 : x
  2. Step 2: Convert to fraction form
    7,903.53/11,856.12 = 2,709.81/x
  3. Step 3: Cross multiply
    7,903.53x = 11,856.12 × 2,709.81
  4. Step 4: Simplify right side
    7,903.53x = 32,127,832.54
  5. Step 5: Solve for x
    x = 32,127,832.54/7,903.53
  6. Step 6: Final answer
    x = 4,065.00

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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.