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Finding the Fourth Proportional to 60,524.31, 90,801.05 and 18,971.31

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Solution

The fourth proportional to 60,524.31, 90,801.05 and 18,971.31 is: 28,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,524.31 : 90,801.05 = 18,971.31 : x
  2. Step 2: Convert to fraction form
    60,524.31/90,801.05 = 18,971.31/x
  3. Step 3: Cross multiply
    60,524.31x = 90,801.05 × 18,971.31
  4. Step 4: Simplify right side
    60,524.31x = 1,722,614,867.88
  5. Step 5: Solve for x
    x = 1,722,614,867.88/60,524.31
  6. Step 6: Final answer
    x = 28,461.54

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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.