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Finding the Fourth Proportional to 8,710.30, 12,031.77 and 6,845.41

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Solution

The fourth proportional to 8,710.30, 12,031.77 and 6,845.41 is: 9,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.30 : 12,031.77 = 6,845.41 : x
  2. Step 2: Convert to fraction form
    8,710.30/12,031.77 = 6,845.41/x
  3. Step 3: Cross multiply
    8,710.30x = 12,031.77 × 6,845.41
  4. Step 4: Simplify right side
    8,710.30x = 82,362,398.68
  5. Step 5: Solve for x
    x = 82,362,398.68/8,710.30
  6. Step 6: Final answer
    x = 9,455.75

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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.