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Finding the Fourth Proportional to 60,354.86, 90,679.89 and 56,997.80

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Solution

The fourth proportional to 60,354.86, 90,679.89 and 56,997.80 is: 85,636.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,354.86 : 90,679.89 = 56,997.80 : x
  2. Step 2: Convert to fraction form
    60,354.86/90,679.89 = 56,997.80/x
  3. Step 3: Cross multiply
    60,354.86x = 90,679.89 × 56,997.80
  4. Step 4: Simplify right side
    60,354.86x = 5,168,554,234.24
  5. Step 5: Solve for x
    x = 5,168,554,234.24/60,354.86
  6. Step 6: Final answer
    x = 85,636.09

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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.