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Finding the Fourth Proportional to 10,998.80, 16,492.04 and 4,754.92

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Solution

The fourth proportional to 10,998.80, 16,492.04 and 4,754.92 is: 7,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.80 : 16,492.04 = 4,754.92 : x
  2. Step 2: Convert to fraction form
    10,998.80/16,492.04 = 4,754.92/x
  3. Step 3: Cross multiply
    10,998.80x = 16,492.04 × 4,754.92
  4. Step 4: Simplify right side
    10,998.80x = 78,418,330.84
  5. Step 5: Solve for x
    x = 78,418,330.84/10,998.80
  6. Step 6: Final answer
    x = 7,129.72

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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.