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Finding the Fourth Proportional to 54,153.77, 81,231.77 and 16,713.86

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Solution

The fourth proportional to 54,153.77, 81,231.77 and 16,713.86 is: 25,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.77 : 81,231.77 = 16,713.86 : x
  2. Step 2: Convert to fraction form
    54,153.77/81,231.77 = 16,713.86/x
  3. Step 3: Cross multiply
    54,153.77x = 81,231.77 × 16,713.86
  4. Step 4: Simplify right side
    54,153.77x = 1,357,696,431.33
  5. Step 5: Solve for x
    x = 1,357,696,431.33/54,153.77
  6. Step 6: Final answer
    x = 25,071.13

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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.