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Finding the Fourth Proportional to 5,773.72, 8,660.52 and 1,878.28

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Solution

The fourth proportional to 5,773.72, 8,660.52 and 1,878.28 is: 2,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,773.72 : 8,660.52 = 1,878.28 : x
  2. Step 2: Convert to fraction form
    5,773.72/8,660.52 = 1,878.28/x
  3. Step 3: Cross multiply
    5,773.72x = 8,660.52 × 1,878.28
  4. Step 4: Simplify right side
    5,773.72x = 16,266,881.51
  5. Step 5: Solve for x
    x = 16,266,881.51/5,773.72
  6. Step 6: Final answer
    x = 2,817.40

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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.