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Finding the Fourth Proportional to 27,291.78, 37,663.02 and 16,679.16

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Solution

The fourth proportional to 27,291.78, 37,663.02 and 16,679.16 is: 23,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,291.78 : 37,663.02 = 16,679.16 : x
  2. Step 2: Convert to fraction form
    27,291.78/37,663.02 = 16,679.16/x
  3. Step 3: Cross multiply
    27,291.78x = 37,663.02 × 16,679.16
  4. Step 4: Simplify right side
    27,291.78x = 628,187,536.66
  5. Step 5: Solve for x
    x = 628,187,536.66/27,291.78
  6. Step 6: Final answer
    x = 23,017.46

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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.