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Finding the Fourth Proportional to 30,959.75, 42,724.62 and 17,533.62

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Solution

The fourth proportional to 30,959.75, 42,724.62 and 17,533.62 is: 24,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.75 : 42,724.62 = 17,533.62 : x
  2. Step 2: Convert to fraction form
    30,959.75/42,724.62 = 17,533.62/x
  3. Step 3: Cross multiply
    30,959.75x = 42,724.62 × 17,533.62
  4. Step 4: Simplify right side
    30,959.75x = 749,117,295.56
  5. Step 5: Solve for x
    x = 749,117,295.56/30,959.75
  6. Step 6: Final answer
    x = 24,196.49

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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.