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Finding the Fourth Proportional to 30,469.38, 42,049.89 and 17,041.89

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Solution

The fourth proportional to 30,469.38, 42,049.89 and 17,041.89 is: 23,519.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.38 : 42,049.89 = 17,041.89 : x
  2. Step 2: Convert to fraction form
    30,469.38/42,049.89 = 17,041.89/x
  3. Step 3: Cross multiply
    30,469.38x = 42,049.89 × 17,041.89
  4. Step 4: Simplify right side
    30,469.38x = 716,609,599.89
  5. Step 5: Solve for x
    x = 716,609,599.89/30,469.38
  6. Step 6: Final answer
    x = 23,519.01

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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.