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Finding the Fourth Proportional to 13,950.88, 19,267.32 and 8,658.32

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Solution

The fourth proportional to 13,950.88, 19,267.32 and 8,658.32 is: 11,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.88 : 19,267.32 = 8,658.32 : x
  2. Step 2: Convert to fraction form
    13,950.88/19,267.32 = 8,658.32/x
  3. Step 3: Cross multiply
    13,950.88x = 19,267.32 × 8,658.32
  4. Step 4: Simplify right side
    13,950.88x = 166,822,622.10
  5. Step 5: Solve for x
    x = 166,822,622.10/13,950.88
  6. Step 6: Final answer
    x = 11,957.86

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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.