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Finding the Fourth Proportional to 6,425.56, 8,866.56 and 3,631.06

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Solution

The fourth proportional to 6,425.56, 8,866.56 and 3,631.06 is: 5,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.56 : 8,866.56 = 3,631.06 : x
  2. Step 2: Convert to fraction form
    6,425.56/8,866.56 = 3,631.06/x
  3. Step 3: Cross multiply
    6,425.56x = 8,866.56 × 3,631.06
  4. Step 4: Simplify right side
    6,425.56x = 32,195,011.35
  5. Step 5: Solve for x
    x = 32,195,011.35/6,425.56
  6. Step 6: Final answer
    x = 5,010.46

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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.