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Finding the Fourth Proportional to 12,767.66, 17,615.07 and 7,459.46

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Solution

The fourth proportional to 12,767.66, 17,615.07 and 7,459.46 is: 10,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.66 : 17,615.07 = 7,459.46 : x
  2. Step 2: Convert to fraction form
    12,767.66/17,615.07 = 7,459.46/x
  3. Step 3: Cross multiply
    12,767.66x = 17,615.07 × 7,459.46
  4. Step 4: Simplify right side
    12,767.66x = 131,398,910.06
  5. Step 5: Solve for x
    x = 131,398,910.06/12,767.66
  6. Step 6: Final answer
    x = 10,291.54

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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.