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Finding the Fourth Proportional to 27,952.80, 38,579.76 and 16,617.12

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Solution

The fourth proportional to 27,952.80, 38,579.76 and 16,617.12 is: 22,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,952.80 : 38,579.76 = 16,617.12 : x
  2. Step 2: Convert to fraction form
    27,952.80/38,579.76 = 16,617.12/x
  3. Step 3: Cross multiply
    27,952.80x = 38,579.76 × 16,617.12
  4. Step 4: Simplify right side
    27,952.80x = 641,084,501.49
  5. Step 5: Solve for x
    x = 641,084,501.49/27,952.80
  6. Step 6: Final answer
    x = 22,934.54

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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.