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Finding the Fourth Proportional to 34,711.81, 47,899.96 and 19,605.11

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Solution

The fourth proportional to 34,711.81, 47,899.96 and 19,605.11 is: 27,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,711.81 : 47,899.96 = 19,605.11 : x
  2. Step 2: Convert to fraction form
    34,711.81/47,899.96 = 19,605.11/x
  3. Step 3: Cross multiply
    34,711.81x = 47,899.96 × 19,605.11
  4. Step 4: Simplify right side
    34,711.81x = 939,083,696.28
  5. Step 5: Solve for x
    x = 939,083,696.28/34,711.81
  6. Step 6: Final answer
    x = 27,053.73

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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.