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Finding the Fourth Proportional to 45,921.84, 68,908.68 and 19,624.56

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Solution

The fourth proportional to 45,921.84, 68,908.68 and 19,624.56 is: 29,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,921.84 : 68,908.68 = 19,624.56 : x
  2. Step 2: Convert to fraction form
    45,921.84/68,908.68 = 19,624.56/x
  3. Step 3: Cross multiply
    45,921.84x = 68,908.68 × 19,624.56
  4. Step 4: Simplify right side
    45,921.84x = 1,352,302,525.18
  5. Step 5: Solve for x
    x = 1,352,302,525.18/45,921.84
  6. Step 6: Final answer
    x = 29,447.92

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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.