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Finding the Fourth Proportional to 30,959.50, 42,724.28 and 17,533.37

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Solution

The fourth proportional to 30,959.50, 42,724.28 and 17,533.37 is: 24,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.50 : 42,724.28 = 17,533.37 : x
  2. Step 2: Convert to fraction form
    30,959.50/42,724.28 = 17,533.37/x
  3. Step 3: Cross multiply
    30,959.50x = 42,724.28 × 17,533.37
  4. Step 4: Simplify right side
    30,959.50x = 749,100,565.39
  5. Step 5: Solve for x
    x = 749,100,565.39/30,959.50
  6. Step 6: Final answer
    x = 24,196.14

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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.