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Finding the Fourth Proportional to 5,675.90, 8,509.06 and 2,712.67

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Solution

The fourth proportional to 5,675.90, 8,509.06 and 2,712.67 is: 4,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.90 : 8,509.06 = 2,712.67 : x
  2. Step 2: Convert to fraction form
    5,675.90/8,509.06 = 2,712.67/x
  3. Step 3: Cross multiply
    5,675.90x = 8,509.06 × 2,712.67
  4. Step 4: Simplify right side
    5,675.90x = 23,082,271.79
  5. Step 5: Solve for x
    x = 23,082,271.79/5,675.90
  6. Step 6: Final answer
    x = 4,066.72

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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.