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Finding the Fourth Proportional to 60,354.21, 90,506.88 and 18,221.25

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Solution

The fourth proportional to 60,354.21, 90,506.88 and 18,221.25 is: 27,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,354.21 : 90,506.88 = 18,221.25 : x
  2. Step 2: Convert to fraction form
    60,354.21/90,506.88 = 18,221.25/x
  3. Step 3: Cross multiply
    60,354.21x = 90,506.88 × 18,221.25
  4. Step 4: Simplify right side
    60,354.21x = 1,649,148,487.20
  5. Step 5: Solve for x
    x = 1,649,148,487.20/60,354.21
  6. Step 6: Final answer
    x = 27,324.50

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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.