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Finding the Fourth Proportional to 60,654.61, 90,998.29 and 18,533.54

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Solution

The fourth proportional to 60,654.61, 90,998.29 and 18,533.54 is: 27,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,654.61 : 90,998.29 = 18,533.54 : x
  2. Step 2: Convert to fraction form
    60,654.61/90,998.29 = 18,533.54/x
  3. Step 3: Cross multiply
    60,654.61x = 90,998.29 × 18,533.54
  4. Step 4: Simplify right side
    60,654.61x = 1,686,520,698.31
  5. Step 5: Solve for x
    x = 1,686,520,698.31/60,654.61
  6. Step 6: Final answer
    x = 27,805.32

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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.