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Finding the Fourth Proportional to 61,187.44, 91,783.84 and 16,818.56

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Solution

The fourth proportional to 61,187.44, 91,783.84 and 16,818.56 is: 25,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187.44 : 91,783.84 = 16,818.56 : x
  2. Step 2: Convert to fraction form
    61,187.44/91,783.84 = 16,818.56/x
  3. Step 3: Cross multiply
    61,187.44x = 91,783.84 × 16,818.56
  4. Step 4: Simplify right side
    61,187.44x = 1,543,672,020.07
  5. Step 5: Solve for x
    x = 1,543,672,020.07/61,187.44
  6. Step 6: Final answer
    x = 25,228.58

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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.