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Finding the Fourth Proportional to 4,841.61, 7,256.03 and 1,918.32

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Solution

The fourth proportional to 4,841.61, 7,256.03 and 1,918.32 is: 2,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,841.61 : 7,256.03 = 1,918.32 : x
  2. Step 2: Convert to fraction form
    4,841.61/7,256.03 = 1,918.32/x
  3. Step 3: Cross multiply
    4,841.61x = 7,256.03 × 1,918.32
  4. Step 4: Simplify right side
    4,841.61x = 13,919,377.88
  5. Step 5: Solve for x
    x = 13,919,377.88/4,841.61
  6. Step 6: Final answer
    x = 2,874.95

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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.