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Finding the Fourth Proportional to 14,253.54, 19,669.91 and 7,965.91

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Solution

The fourth proportional to 14,253.54, 19,669.91 and 7,965.91 is: 10,992.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.54 : 19,669.91 = 7,965.91 : x
  2. Step 2: Convert to fraction form
    14,253.54/19,669.91 = 7,965.91/x
  3. Step 3: Cross multiply
    14,253.54x = 19,669.91 × 7,965.91
  4. Step 4: Simplify right side
    14,253.54x = 156,688,692.94
  5. Step 5: Solve for x
    x = 156,688,692.94/14,253.54
  6. Step 6: Final answer
    x = 10,992.97

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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.