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Finding the Fourth Proportional to 39,925.97, 55,100.57 and 23,158.97

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Solution

The fourth proportional to 39,925.97, 55,100.57 and 23,158.97 is: 31,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,925.97 : 55,100.57 = 23,158.97 : x
  2. Step 2: Convert to fraction form
    39,925.97/55,100.57 = 23,158.97/x
  3. Step 3: Cross multiply
    39,925.97x = 55,100.57 × 23,158.97
  4. Step 4: Simplify right side
    39,925.97x = 1,276,072,056.32
  5. Step 5: Solve for x
    x = 1,276,072,056.32/39,925.97
  6. Step 6: Final answer
    x = 31,960.96

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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.