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Finding the Fourth Proportional to 12,471.64, 17,210.84 and 6,882.64

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Solution

The fourth proportional to 12,471.64, 17,210.84 and 6,882.64 is: 9,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.64 : 17,210.84 = 6,882.64 : x
  2. Step 2: Convert to fraction form
    12,471.64/17,210.84 = 6,882.64/x
  3. Step 3: Cross multiply
    12,471.64x = 17,210.84 × 6,882.64
  4. Step 4: Simplify right side
    12,471.64x = 118,456,015.82
  5. Step 5: Solve for x
    x = 118,456,015.82/12,471.64
  6. Step 6: Final answer
    x = 9,498.03

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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.