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Finding the Fourth Proportional to 6,606.06, 9,905.40 and 2,713.20

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Solution

The fourth proportional to 6,606.06, 9,905.40 and 2,713.20 is: 4,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.06 : 9,905.40 = 2,713.20 : x
  2. Step 2: Convert to fraction form
    6,606.06/9,905.40 = 2,713.20/x
  3. Step 3: Cross multiply
    6,606.06x = 9,905.40 × 2,713.20
  4. Step 4: Simplify right side
    6,606.06x = 26,875,331.28
  5. Step 5: Solve for x
    x = 26,875,331.28/6,606.06
  6. Step 6: Final answer
    x = 4,068.28

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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.