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Finding the Fourth Proportional to 34,761.69, 47,975.49 and 19,655.19

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Solution

The fourth proportional to 34,761.69, 47,975.49 and 19,655.19 is: 27,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,761.69 : 47,975.49 = 19,655.19 : x
  2. Step 2: Convert to fraction form
    34,761.69/47,975.49 = 19,655.19/x
  3. Step 3: Cross multiply
    34,761.69x = 47,975.49 × 19,655.19
  4. Step 4: Simplify right side
    34,761.69x = 942,967,371.29
  5. Step 5: Solve for x
    x = 942,967,371.29/34,761.69
  6. Step 6: Final answer
    x = 27,126.63

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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.