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Finding the Fourth Proportional to 19,953.84, 29,892.46 and 11,162.12

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Solution

The fourth proportional to 19,953.84, 29,892.46 and 11,162.12 is: 16,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953.84 : 29,892.46 = 11,162.12 : x
  2. Step 2: Convert to fraction form
    19,953.84/29,892.46 = 11,162.12/x
  3. Step 3: Cross multiply
    19,953.84x = 29,892.46 × 11,162.12
  4. Step 4: Simplify right side
    19,953.84x = 333,663,225.62
  5. Step 5: Solve for x
    x = 333,663,225.62/19,953.84
  6. Step 6: Final answer
    x = 16,721.76

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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.