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Finding the Fourth Proportional to 29,048.12, 43,490.08 and 18,492

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Solution

The fourth proportional to 29,048.12, 43,490.08 and 18,492 is: 27,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,048.12 : 43,490.08 = 18,492 : x
  2. Step 2: Convert to fraction form
    29,048.12/43,490.08 = 18,492/x
  3. Step 3: Cross multiply
    29,048.12x = 43,490.08 × 18,492
  4. Step 4: Simplify right side
    29,048.12x = 804,218,559.36
  5. Step 5: Solve for x
    x = 804,218,559.36/29,048.12
  6. Step 6: Final answer
    x = 27,685.74

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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.