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Finding the Fourth Proportional to 35,312.75, 48,731.39 and 19,179.88

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Solution

The fourth proportional to 35,312.75, 48,731.39 and 19,179.88 is: 26,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.75 : 48,731.39 = 19,179.88 : x
  2. Step 2: Convert to fraction form
    35,312.75/48,731.39 = 19,179.88/x
  3. Step 3: Cross multiply
    35,312.75x = 48,731.39 × 19,179.88
  4. Step 4: Simplify right side
    35,312.75x = 934,662,212.43
  5. Step 5: Solve for x
    x = 934,662,212.43/35,312.75
  6. Step 6: Final answer
    x = 26,468.12

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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.