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Finding the Fourth Proportional to 48,607.54, 72,911.29 and 11,671.54

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Solution

The fourth proportional to 48,607.54, 72,911.29 and 11,671.54 is: 17,507.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,607.54 : 72,911.29 = 11,671.54 : x
  2. Step 2: Convert to fraction form
    48,607.54/72,911.29 = 11,671.54/x
  3. Step 3: Cross multiply
    48,607.54x = 72,911.29 × 11,671.54
  4. Step 4: Simplify right side
    48,607.54x = 850,987,037.69
  5. Step 5: Solve for x
    x = 850,987,037.69/48,607.54
  6. Step 6: Final answer
    x = 17,507.31

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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.