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Finding the Fourth Proportional to 18,603.65, 25,677.46 and 10,650.46

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Solution

The fourth proportional to 18,603.65, 25,677.46 and 10,650.46 is: 14,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.65 : 25,677.46 = 10,650.46 : x
  2. Step 2: Convert to fraction form
    18,603.65/25,677.46 = 10,650.46/x
  3. Step 3: Cross multiply
    18,603.65x = 25,677.46 × 10,650.46
  4. Step 4: Simplify right side
    18,603.65x = 273,476,760.63
  5. Step 5: Solve for x
    x = 273,476,760.63/18,603.65
  6. Step 6: Final answer
    x = 14,700.17

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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.