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Finding the Fourth Proportional to 60,478.56, 90,567 and 38,224.80

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Solution

The fourth proportional to 60,478.56, 90,567 and 38,224.80 is: 57,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,478.56 : 90,567 = 38,224.80 : x
  2. Step 2: Convert to fraction form
    60,478.56/90,567 = 38,224.80/x
  3. Step 3: Cross multiply
    60,478.56x = 90,567 × 38,224.80
  4. Step 4: Simplify right side
    60,478.56x = 3,461,905,461.60
  5. Step 5: Solve for x
    x = 3,461,905,461.60/60,478.56
  6. Step 6: Final answer
    x = 57,241.86

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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.