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Finding the Fourth Proportional to 3,955.92, 5,929.77 and 1,614.90

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Solution

The fourth proportional to 3,955.92, 5,929.77 and 1,614.90 is: 2,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.92 : 5,929.77 = 1,614.90 : x
  2. Step 2: Convert to fraction form
    3,955.92/5,929.77 = 1,614.90/x
  3. Step 3: Cross multiply
    3,955.92x = 5,929.77 × 1,614.90
  4. Step 4: Simplify right side
    3,955.92x = 9,575,985.57
  5. Step 5: Solve for x
    x = 9,575,985.57/3,955.92
  6. Step 6: Final answer
    x = 2,420.67

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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.