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Finding the Fourth Proportional to 60,353.96, 90,495.64 and 18,221.40

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Solution

The fourth proportional to 60,353.96, 90,495.64 and 18,221.40 is: 27,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,353.96 : 90,495.64 = 18,221.40 : x
  2. Step 2: Convert to fraction form
    60,353.96/90,495.64 = 18,221.40/x
  3. Step 3: Cross multiply
    60,353.96x = 90,495.64 × 18,221.40
  4. Step 4: Simplify right side
    60,353.96x = 1,648,957,254.70
  5. Step 5: Solve for x
    x = 1,648,957,254.70/60,353.96
  6. Step 6: Final answer
    x = 27,321.44

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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.