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Finding the Fourth Proportional to 12,725.65, 17,560.81 and 7,060.34

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Solution

The fourth proportional to 12,725.65, 17,560.81 and 7,060.34 is: 9,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.65 : 17,560.81 = 7,060.34 : x
  2. Step 2: Convert to fraction form
    12,725.65/17,560.81 = 7,060.34/x
  3. Step 3: Cross multiply
    12,725.65x = 17,560.81 × 7,060.34
  4. Step 4: Simplify right side
    12,725.65x = 123,985,203.51
  5. Step 5: Solve for x
    x = 123,985,203.51/12,725.65
  6. Step 6: Final answer
    x = 9,742.94

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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.