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Finding the Fourth Proportional to 30,951.56, 42,751.79 and 23,867.50

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Solution

The fourth proportional to 30,951.56, 42,751.79 and 23,867.50 is: 32,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.56 : 42,751.79 = 23,867.50 : x
  2. Step 2: Convert to fraction form
    30,951.56/42,751.79 = 23,867.50/x
  3. Step 3: Cross multiply
    30,951.56x = 42,751.79 × 23,867.50
  4. Step 4: Simplify right side
    30,951.56x = 1,020,378,425.53
  5. Step 5: Solve for x
    x = 1,020,378,425.53/30,951.56
  6. Step 6: Final answer
    x = 32,966.95

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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.