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Finding the Fourth Proportional to 8,867.51, 12,238.02 and 6,625.49

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Solution

The fourth proportional to 8,867.51, 12,238.02 and 6,625.49 is: 9,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.51 : 12,238.02 = 6,625.49 : x
  2. Step 2: Convert to fraction form
    8,867.51/12,238.02 = 6,625.49/x
  3. Step 3: Cross multiply
    8,867.51x = 12,238.02 × 6,625.49
  4. Step 4: Simplify right side
    8,867.51x = 81,082,879.13
  5. Step 5: Solve for x
    x = 81,082,879.13/8,867.51
  6. Step 6: Final answer
    x = 9,143.82

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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.