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Finding the Fourth Proportional to 13,006.88, 19,492.85 and 6,753.88

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Solution

The fourth proportional to 13,006.88, 19,492.85 and 6,753.88 is: 10,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,006.88 : 19,492.85 = 6,753.88 : x
  2. Step 2: Convert to fraction form
    13,006.88/19,492.85 = 6,753.88/x
  3. Step 3: Cross multiply
    13,006.88x = 19,492.85 × 6,753.88
  4. Step 4: Simplify right side
    13,006.88x = 131,652,411.01
  5. Step 5: Solve for x
    x = 131,652,411.01/13,006.88
  6. Step 6: Final answer
    x = 10,121.75

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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.