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Finding the Fourth Proportional to 29,688.65, 44,535.90 and 8,628.87

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Solution

The fourth proportional to 29,688.65, 44,535.90 and 8,628.87 is: 12,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.65 : 44,535.90 = 8,628.87 : x
  2. Step 2: Convert to fraction form
    29,688.65/44,535.90 = 8,628.87/x
  3. Step 3: Cross multiply
    29,688.65x = 44,535.90 × 8,628.87
  4. Step 4: Simplify right side
    29,688.65x = 384,294,491.43
  5. Step 5: Solve for x
    x = 384,294,491.43/29,688.65
  6. Step 6: Final answer
    x = 12,944.16

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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.