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Finding the Fourth Proportional to 35,286.40, 48,695.40 and 19,371.04

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Solution

The fourth proportional to 35,286.40, 48,695.40 and 19,371.04 is: 26,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,286.40 : 48,695.40 = 19,371.04 : x
  2. Step 2: Convert to fraction form
    35,286.40/48,695.40 = 19,371.04/x
  3. Step 3: Cross multiply
    35,286.40x = 48,695.40 × 19,371.04
  4. Step 4: Simplify right side
    35,286.40x = 943,280,541.22
  5. Step 5: Solve for x
    x = 943,280,541.22/35,286.40
  6. Step 6: Final answer
    x = 26,732.13

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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.