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Finding the Fourth Proportional to 5,133.72, 7,700.94 and 1,671.06

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Solution

The fourth proportional to 5,133.72, 7,700.94 and 1,671.06 is: 2,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.72 : 7,700.94 = 1,671.06 : x
  2. Step 2: Convert to fraction form
    5,133.72/7,700.94 = 1,671.06/x
  3. Step 3: Cross multiply
    5,133.72x = 7,700.94 × 1,671.06
  4. Step 4: Simplify right side
    5,133.72x = 12,868,732.80
  5. Step 5: Solve for x
    x = 12,868,732.80/5,133.72
  6. Step 6: Final answer
    x = 2,506.71

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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.