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Finding the Fourth Proportional to 34,128.45, 47,101.11 and 19,022.49

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Solution

The fourth proportional to 34,128.45, 47,101.11 and 19,022.49 is: 26,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,128.45 : 47,101.11 = 19,022.49 : x
  2. Step 2: Convert to fraction form
    34,128.45/47,101.11 = 19,022.49/x
  3. Step 3: Cross multiply
    34,128.45x = 47,101.11 × 19,022.49
  4. Step 4: Simplify right side
    34,128.45x = 895,980,393.96
  5. Step 5: Solve for x
    x = 895,980,393.96/34,128.45
  6. Step 6: Final answer
    x = 26,253.18

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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.