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Finding the Fourth Proportional to 6,179.70, 8,663.10 and 6,179.70

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Solution

The fourth proportional to 6,179.70, 8,663.10 and 6,179.70 is: 8,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,179.70 : 8,663.10 = 6,179.70 : x
  2. Step 2: Convert to fraction form
    6,179.70/8,663.10 = 6,179.70/x
  3. Step 3: Cross multiply
    6,179.70x = 8,663.10 × 6,179.70
  4. Step 4: Simplify right side
    6,179.70x = 53,535,359.07
  5. Step 5: Solve for x
    x = 53,535,359.07/6,179.70
  6. Step 6: Final answer
    x = 8,663.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.