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Finding the Fourth Proportional to 34,654.80, 51,893.64 and 19,055.28

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Solution

The fourth proportional to 34,654.80, 51,893.64 and 19,055.28 is: 28,534.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.80 : 51,893.64 = 19,055.28 : x
  2. Step 2: Convert to fraction form
    34,654.80/51,893.64 = 19,055.28/x
  3. Step 3: Cross multiply
    34,654.80x = 51,893.64 × 19,055.28
  4. Step 4: Simplify right side
    34,654.80x = 988,847,840.42
  5. Step 5: Solve for x
    x = 988,847,840.42/34,654.80
  6. Step 6: Final answer
    x = 28,534.22

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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.