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Finding the Fourth Proportional to 12,304.88, 16,981.14 and 6,715.88

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Solution

The fourth proportional to 12,304.88, 16,981.14 and 6,715.88 is: 9,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.88 : 16,981.14 = 6,715.88 : x
  2. Step 2: Convert to fraction form
    12,304.88/16,981.14 = 6,715.88/x
  3. Step 3: Cross multiply
    12,304.88x = 16,981.14 × 6,715.88
  4. Step 4: Simplify right side
    12,304.88x = 114,043,213.60
  5. Step 5: Solve for x
    x = 114,043,213.60/12,304.88
  6. Step 6: Final answer
    x = 9,268.13

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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.