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Finding the Fourth Proportional to 16,307.70, 24,461.55 and 13,539.90

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Solution

The fourth proportional to 16,307.70, 24,461.55 and 13,539.90 is: 20,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,307.70 : 24,461.55 = 13,539.90 : x
  2. Step 2: Convert to fraction form
    16,307.70/24,461.55 = 13,539.90/x
  3. Step 3: Cross multiply
    16,307.70x = 24,461.55 × 13,539.90
  4. Step 4: Simplify right side
    16,307.70x = 331,206,940.85
  5. Step 5: Solve for x
    x = 331,206,940.85/16,307.70
  6. Step 6: Final answer
    x = 20,309.85

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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.