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Finding the Fourth Proportional to 27,887.68, 38,447.76 and 23,891.68

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Solution

The fourth proportional to 27,887.68, 38,447.76 and 23,891.68 is: 32,938.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,887.68 : 38,447.76 = 23,891.68 : x
  2. Step 2: Convert to fraction form
    27,887.68/38,447.76 = 23,891.68/x
  3. Step 3: Cross multiply
    27,887.68x = 38,447.76 × 23,891.68
  4. Step 4: Simplify right side
    27,887.68x = 918,581,578.64
  5. Step 5: Solve for x
    x = 918,581,578.64/27,887.68
  6. Step 6: Final answer
    x = 32,938.62

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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.