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Finding the Fourth Proportional to 35,489.92, 48,978.96 and 19,575.76

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Solution

The fourth proportional to 35,489.92, 48,978.96 and 19,575.76 is: 27,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.92 : 48,978.96 = 19,575.76 : x
  2. Step 2: Convert to fraction form
    35,489.92/48,978.96 = 19,575.76/x
  3. Step 3: Cross multiply
    35,489.92x = 48,978.96 × 19,575.76
  4. Step 4: Simplify right side
    35,489.92x = 958,800,366.01
  5. Step 5: Solve for x
    x = 958,800,366.01/35,489.92
  6. Step 6: Final answer
    x = 27,016.13

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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.