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Finding the Fourth Proportional to 60,514.98, 90,774.90 and 21,076.08

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Solution

The fourth proportional to 60,514.98, 90,774.90 and 21,076.08 is: 31,614.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,514.98 : 90,774.90 = 21,076.08 : x
  2. Step 2: Convert to fraction form
    60,514.98/90,774.90 = 21,076.08/x
  3. Step 3: Cross multiply
    60,514.98x = 90,774.90 × 21,076.08
  4. Step 4: Simplify right side
    60,514.98x = 1,913,179,054.39
  5. Step 5: Solve for x
    x = 1,913,179,054.39/60,514.98
  6. Step 6: Final answer
    x = 31,614.97

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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.