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Finding the Fourth Proportional to 6,362.90, 8,781.58 and 3,674.11

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Solution

The fourth proportional to 6,362.90, 8,781.58 and 3,674.11 is: 5,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,362.90 : 8,781.58 = 3,674.11 : x
  2. Step 2: Convert to fraction form
    6,362.90/8,781.58 = 3,674.11/x
  3. Step 3: Cross multiply
    6,362.90x = 8,781.58 × 3,674.11
  4. Step 4: Simplify right side
    6,362.90x = 32,264,498.68
  5. Step 5: Solve for x
    x = 32,264,498.68/6,362.90
  6. Step 6: Final answer
    x = 5,070.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.