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Finding the Fourth Proportional to 54,607.78, 81,910.86 and 17,671.78

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Solution

The fourth proportional to 54,607.78, 81,910.86 and 17,671.78 is: 26,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,607.78 : 81,910.86 = 17,671.78 : x
  2. Step 2: Convert to fraction form
    54,607.78/81,910.86 = 17,671.78/x
  3. Step 3: Cross multiply
    54,607.78x = 81,910.86 × 17,671.78
  4. Step 4: Simplify right side
    54,607.78x = 1,447,510,697.53
  5. Step 5: Solve for x
    x = 1,447,510,697.53/54,607.78
  6. Step 6: Final answer
    x = 26,507.41

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1.5x scale

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.