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Finding the Fourth Proportional to 25,361.92, 35,011.68 and 15,935.68

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Solution

The fourth proportional to 25,361.92, 35,011.68 and 15,935.68 is: 21,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,361.92 : 35,011.68 = 15,935.68 : x
  2. Step 2: Convert to fraction form
    25,361.92/35,011.68 = 15,935.68/x
  3. Step 3: Cross multiply
    25,361.92x = 35,011.68 × 15,935.68
  4. Step 4: Simplify right side
    25,361.92x = 557,934,928.74
  5. Step 5: Solve for x
    x = 557,934,928.74/25,361.92
  6. Step 6: Final answer
    x = 21,998.92

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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.