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Finding the Fourth Proportional to 19,487.76, 29,226.54 and 7,006.32

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Solution

The fourth proportional to 19,487.76, 29,226.54 and 7,006.32 is: 10,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.76 : 29,226.54 = 7,006.32 : x
  2. Step 2: Convert to fraction form
    19,487.76/29,226.54 = 7,006.32/x
  3. Step 3: Cross multiply
    19,487.76x = 29,226.54 × 7,006.32
  4. Step 4: Simplify right side
    19,487.76x = 204,770,491.73
  5. Step 5: Solve for x
    x = 204,770,491.73/19,487.76
  6. Step 6: Final answer
    x = 10,507.65

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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.