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Finding the Fourth Proportional to 8,663.77, 12,995.66 and 3,473.29

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Solution

The fourth proportional to 8,663.77, 12,995.66 and 3,473.29 is: 5,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.77 : 12,995.66 = 3,473.29 : x
  2. Step 2: Convert to fraction form
    8,663.77/12,995.66 = 3,473.29/x
  3. Step 3: Cross multiply
    8,663.77x = 12,995.66 × 3,473.29
  4. Step 4: Simplify right side
    8,663.77x = 45,137,695.92
  5. Step 5: Solve for x
    x = 45,137,695.92/8,663.77
  6. Step 6: Final answer
    x = 5,209.94

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1.5x scale

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.