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Finding the Fourth Proportional to 13,242.99, 19,861.23 and 4,008.99

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Solution

The fourth proportional to 13,242.99, 19,861.23 and 4,008.99 is: 6,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.99 : 19,861.23 = 4,008.99 : x
  2. Step 2: Convert to fraction form
    13,242.99/19,861.23 = 4,008.99/x
  3. Step 3: Cross multiply
    13,242.99x = 19,861.23 × 4,008.99
  4. Step 4: Simplify right side
    13,242.99x = 79,623,472.46
  5. Step 5: Solve for x
    x = 79,623,472.46/13,242.99
  6. Step 6: Final answer
    x = 6,012.50

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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.