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Finding the Fourth Proportional to 16,309.64, 24,472.83 and 7,989.50

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Solution

The fourth proportional to 16,309.64, 24,472.83 and 7,989.50 is: 11,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,309.64 : 24,472.83 = 7,989.50 : x
  2. Step 2: Convert to fraction form
    16,309.64/24,472.83 = 7,989.50/x
  3. Step 3: Cross multiply
    16,309.64x = 24,472.83 × 7,989.50
  4. Step 4: Simplify right side
    16,309.64x = 195,525,675.29
  5. Step 5: Solve for x
    x = 195,525,675.29/16,309.64
  6. Step 6: Final answer
    x = 11,988.35

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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.