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Finding the Fourth Proportional to 5,676.68, 8,515.02 and 1,572.68

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Solution

The fourth proportional to 5,676.68, 8,515.02 and 1,572.68 is: 2,359.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.68 : 8,515.02 = 1,572.68 : x
  2. Step 2: Convert to fraction form
    5,676.68/8,515.02 = 1,572.68/x
  3. Step 3: Cross multiply
    5,676.68x = 8,515.02 × 1,572.68
  4. Step 4: Simplify right side
    5,676.68x = 13,391,401.65
  5. Step 5: Solve for x
    x = 13,391,401.65/5,676.68
  6. Step 6: Final answer
    x = 2,359.02

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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.