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Finding the Fourth Proportional to 30,372.99, 45,510.27 and 22,991.86

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Solution

The fourth proportional to 30,372.99, 45,510.27 and 22,991.86 is: 34,450.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.99 : 45,510.27 = 22,991.86 : x
  2. Step 2: Convert to fraction form
    30,372.99/45,510.27 = 22,991.86/x
  3. Step 3: Cross multiply
    30,372.99x = 45,510.27 × 22,991.86
  4. Step 4: Simplify right side
    30,372.99x = 1,046,365,968.90
  5. Step 5: Solve for x
    x = 1,046,365,968.90/30,372.99
  6. Step 6: Final answer
    x = 34,450.54

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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.