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Finding the Fourth Proportional to 18,549.23, 25,583.98 and 12,883.99

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Solution

The fourth proportional to 18,549.23, 25,583.98 and 12,883.99 is: 17,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.23 : 25,583.98 = 12,883.99 : x
  2. Step 2: Convert to fraction form
    18,549.23/25,583.98 = 12,883.99/x
  3. Step 3: Cross multiply
    18,549.23x = 25,583.98 × 12,883.99
  4. Step 4: Simplify right side
    18,549.23x = 329,623,742.48
  5. Step 5: Solve for x
    x = 329,623,742.48/18,549.23
  6. Step 6: Final answer
    x = 17,770.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.