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Finding the Fourth Proportional to 36,671.81, 54,998.90 and 16,931.40

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Solution

The fourth proportional to 36,671.81, 54,998.90 and 16,931.40 is: 25,393.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,671.81 : 54,998.90 = 16,931.40 : x
  2. Step 2: Convert to fraction form
    36,671.81/54,998.90 = 16,931.40/x
  3. Step 3: Cross multiply
    36,671.81x = 54,998.90 × 16,931.40
  4. Step 4: Simplify right side
    36,671.81x = 931,208,100.47
  5. Step 5: Solve for x
    x = 931,208,100.47/36,671.81
  6. Step 6: Final answer
    x = 25,393.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.