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Finding the Fourth Proportional to 12,047.64, 16,625.73 and 6,742.47

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Solution

The fourth proportional to 12,047.64, 16,625.73 and 6,742.47 is: 9,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.64 : 16,625.73 = 6,742.47 : x
  2. Step 2: Convert to fraction form
    12,047.64/16,625.73 = 6,742.47/x
  3. Step 3: Cross multiply
    12,047.64x = 16,625.73 × 6,742.47
  4. Step 4: Simplify right side
    12,047.64x = 112,098,485.75
  5. Step 5: Solve for x
    x = 112,098,485.75/12,047.64
  6. Step 6: Final answer
    x = 9,304.60

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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.