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Finding the Fourth Proportional to 12,725.13, 17,560.70 and 7,059.70

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Solution

The fourth proportional to 12,725.13, 17,560.70 and 7,059.70 is: 9,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.13 : 17,560.70 = 7,059.70 : x
  2. Step 2: Convert to fraction form
    12,725.13/17,560.70 = 7,059.70/x
  3. Step 3: Cross multiply
    12,725.13x = 17,560.70 × 7,059.70
  4. Step 4: Simplify right side
    12,725.13x = 123,973,273.79
  5. Step 5: Solve for x
    x = 123,973,273.79/12,725.13
  6. Step 6: Final answer
    x = 9,742.40

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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.