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Finding the Fourth Proportional to 16,885.50, 25,332.30 and 7,651.50

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Solution

The fourth proportional to 16,885.50, 25,332.30 and 7,651.50 is: 11,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.50 : 25,332.30 = 7,651.50 : x
  2. Step 2: Convert to fraction form
    16,885.50/25,332.30 = 7,651.50/x
  3. Step 3: Cross multiply
    16,885.50x = 25,332.30 × 7,651.50
  4. Step 4: Simplify right side
    16,885.50x = 193,830,093.45
  5. Step 5: Solve for x
    x = 193,830,093.45/16,885.50
  6. Step 6: Final answer
    x = 11,479.09

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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.