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Finding the Fourth Proportional to 4,899.60, 7,348.65 and 1,612.70

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Solution

The fourth proportional to 4,899.60, 7,348.65 and 1,612.70 is: 2,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.60 : 7,348.65 = 1,612.70 : x
  2. Step 2: Convert to fraction form
    4,899.60/7,348.65 = 1,612.70/x
  3. Step 3: Cross multiply
    4,899.60x = 7,348.65 × 1,612.70
  4. Step 4: Simplify right side
    4,899.60x = 11,851,167.86
  5. Step 5: Solve for x
    x = 11,851,167.86/4,899.60
  6. Step 6: Final answer
    x = 2,418.80

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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.