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Finding the Fourth Proportional to 8,666.10, 11,958.84 and 4,889.34

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Solution

The fourth proportional to 8,666.10, 11,958.84 and 4,889.34 is: 6,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.10 : 11,958.84 = 4,889.34 : x
  2. Step 2: Convert to fraction form
    8,666.10/11,958.84 = 4,889.34/x
  3. Step 3: Cross multiply
    8,666.10x = 11,958.84 × 4,889.34
  4. Step 4: Simplify right side
    8,666.10x = 58,470,834.77
  5. Step 5: Solve for x
    x = 58,470,834.77/8,666.10
  6. Step 6: Final answer
    x = 6,747.08

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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.