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Finding the Fourth Proportional to 39,511.64, 54,509.64 and 25,895.96

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Solution

The fourth proportional to 39,511.64, 54,509.64 and 25,895.96 is: 35,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.64 : 54,509.64 = 25,895.96 : x
  2. Step 2: Convert to fraction form
    39,511.64/54,509.64 = 25,895.96/x
  3. Step 3: Cross multiply
    39,511.64x = 54,509.64 × 25,895.96
  4. Step 4: Simplify right side
    39,511.64x = 1,411,579,457.05
  5. Step 5: Solve for x
    x = 1,411,579,457.05/39,511.64
  6. Step 6: Final answer
    x = 35,725.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.