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Finding the Fourth Proportional to 11,493.85, 17,248.47 and 4,921.65

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Solution

The fourth proportional to 11,493.85, 17,248.47 and 4,921.65 is: 7,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.85 : 17,248.47 = 4,921.65 : x
  2. Step 2: Convert to fraction form
    11,493.85/17,248.47 = 4,921.65/x
  3. Step 3: Cross multiply
    11,493.85x = 17,248.47 × 4,921.65
  4. Step 4: Simplify right side
    11,493.85x = 84,890,932.38
  5. Step 5: Solve for x
    x = 84,890,932.38/11,493.85
  6. Step 6: Final answer
    x = 7,385.77

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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.