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Finding the Fourth Proportional to 30,411.80, 41,959.11 and 17,662.52

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Solution

The fourth proportional to 30,411.80, 41,959.11 and 17,662.52 is: 24,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,411.80 : 41,959.11 = 17,662.52 : x
  2. Step 2: Convert to fraction form
    30,411.80/41,959.11 = 17,662.52/x
  3. Step 3: Cross multiply
    30,411.80x = 41,959.11 × 17,662.52
  4. Step 4: Simplify right side
    30,411.80x = 741,103,531.24
  5. Step 5: Solve for x
    x = 741,103,531.24/30,411.80
  6. Step 6: Final answer
    x = 24,368.95

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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.