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Finding the Fourth Proportional to 4,899.85, 7,348.21 and 1,612.18

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Solution

The fourth proportional to 4,899.85, 7,348.21 and 1,612.18 is: 2,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.85 : 7,348.21 = 1,612.18 : x
  2. Step 2: Convert to fraction form
    4,899.85/7,348.21 = 1,612.18/x
  3. Step 3: Cross multiply
    4,899.85x = 7,348.21 × 1,612.18
  4. Step 4: Simplify right side
    4,899.85x = 11,846,637.20
  5. Step 5: Solve for x
    x = 11,846,637.20/4,899.85
  6. Step 6: Final answer
    x = 2,417.76

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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.