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Finding the Fourth Proportional to 12,282.88, 16,949.94 and 7,247.32

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Solution

The fourth proportional to 12,282.88, 16,949.94 and 7,247.32 is: 10,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.88 : 16,949.94 = 7,247.32 : x
  2. Step 2: Convert to fraction form
    12,282.88/16,949.94 = 7,247.32/x
  3. Step 3: Cross multiply
    12,282.88x = 16,949.94 × 7,247.32
  4. Step 4: Simplify right side
    12,282.88x = 122,841,639.16
  5. Step 5: Solve for x
    x = 122,841,639.16/12,282.88
  6. Step 6: Final answer
    x = 10,001.05

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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.