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Finding the Fourth Proportional to 30,392.68, 41,921.42 and 26,406.96

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Solution

The fourth proportional to 30,392.68, 41,921.42 and 26,406.96 is: 36,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,392.68 : 41,921.42 = 26,406.96 : x
  2. Step 2: Convert to fraction form
    30,392.68/41,921.42 = 26,406.96/x
  3. Step 3: Cross multiply
    30,392.68x = 41,921.42 × 26,406.96
  4. Step 4: Simplify right side
    30,392.68x = 1,107,017,261.08
  5. Step 5: Solve for x
    x = 1,107,017,261.08/30,392.68
  6. Step 6: Final answer
    x = 36,423.81

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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.