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Finding the Fourth Proportional to 12,353.77, 18,530.95 and 4,456.95

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Solution

The fourth proportional to 12,353.77, 18,530.95 and 4,456.95 is: 6,685.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.77 : 18,530.95 = 4,456.95 : x
  2. Step 2: Convert to fraction form
    12,353.77/18,530.95 = 4,456.95/x
  3. Step 3: Cross multiply
    12,353.77x = 18,530.95 × 4,456.95
  4. Step 4: Simplify right side
    12,353.77x = 82,591,509.98
  5. Step 5: Solve for x
    x = 82,591,509.98/12,353.77
  6. Step 6: Final answer
    x = 6,685.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.