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Finding the Fourth Proportional to 12,750.41, 17,594.70 and 7,717.42

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Solution

The fourth proportional to 12,750.41, 17,594.70 and 7,717.42 is: 10,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.41 : 17,594.70 = 7,717.42 : x
  2. Step 2: Convert to fraction form
    12,750.41/17,594.70 = 7,717.42/x
  3. Step 3: Cross multiply
    12,750.41x = 17,594.70 × 7,717.42
  4. Step 4: Simplify right side
    12,750.41x = 135,785,689.67
  5. Step 5: Solve for x
    x = 135,785,689.67/12,750.41
  6. Step 6: Final answer
    x = 10,649.52

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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.