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Finding the Fourth Proportional to 6,308.66, 8,703.28 and 3,655.10

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Solution

The fourth proportional to 6,308.66, 8,703.28 and 3,655.10 is: 5,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.66 : 8,703.28 = 3,655.10 : x
  2. Step 2: Convert to fraction form
    6,308.66/8,703.28 = 3,655.10/x
  3. Step 3: Cross multiply
    6,308.66x = 8,703.28 × 3,655.10
  4. Step 4: Simplify right side
    6,308.66x = 31,811,385.06
  5. Step 5: Solve for x
    x = 31,811,385.06/6,308.66
  6. Step 6: Final answer
    x = 5,042.49

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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.