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Finding the Fourth Proportional to 12,047.58, 16,625.66 and 6,742.40

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Solution

The fourth proportional to 12,047.58, 16,625.66 and 6,742.40 is: 9,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.58 : 16,625.66 = 6,742.40 : x
  2. Step 2: Convert to fraction form
    12,047.58/16,625.66 = 6,742.40/x
  3. Step 3: Cross multiply
    12,047.58x = 16,625.66 × 6,742.40
  4. Step 4: Simplify right side
    12,047.58x = 112,096,849.98
  5. Step 5: Solve for x
    x = 112,096,849.98/12,047.58
  6. Step 6: Final answer
    x = 9,304.51

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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.