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Finding the Fourth Proportional to 27,892.76, 38,480.87 and 17,818.58

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Solution

The fourth proportional to 27,892.76, 38,480.87 and 17,818.58 is: 24,582.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.76 : 38,480.87 = 17,818.58 : x
  2. Step 2: Convert to fraction form
    27,892.76/38,480.87 = 17,818.58/x
  3. Step 3: Cross multiply
    27,892.76x = 38,480.87 × 17,818.58
  4. Step 4: Simplify right side
    27,892.76x = 685,674,601.31
  5. Step 5: Solve for x
    x = 685,674,601.31/27,892.76
  6. Step 6: Final answer
    x = 24,582.53

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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.