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Finding the Fourth Proportional to 18,660.03, 25,751.12 and 10,703.00

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Solution

The fourth proportional to 18,660.03, 25,751.12 and 10,703.00 is: 14,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.03 : 25,751.12 = 10,703.00 : x
  2. Step 2: Convert to fraction form
    18,660.03/25,751.12 = 10,703.00/x
  3. Step 3: Cross multiply
    18,660.03x = 25,751.12 × 10,703.00
  4. Step 4: Simplify right side
    18,660.03x = 275,614,055.09
  5. Step 5: Solve for x
    x = 275,614,055.09/18,660.03
  6. Step 6: Final answer
    x = 14,770.29

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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.