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Finding the Fourth Proportional to 11,553.86, 15,944.31 and 6,248.67

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Solution

The fourth proportional to 11,553.86, 15,944.31 and 6,248.67 is: 8,623.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.86 : 15,944.31 = 6,248.67 : x
  2. Step 2: Convert to fraction form
    11,553.86/15,944.31 = 6,248.67/x
  3. Step 3: Cross multiply
    11,553.86x = 15,944.31 × 6,248.67
  4. Step 4: Simplify right side
    11,553.86x = 99,630,731.57
  5. Step 5: Solve for x
    x = 99,630,731.57/11,553.86
  6. Step 6: Final answer
    x = 8,623.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.