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Finding the Fourth Proportional to 6,242.13, 8,612.43 and 3,590.39

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Solution

The fourth proportional to 6,242.13, 8,612.43 and 3,590.39 is: 4,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.13 : 8,612.43 = 3,590.39 : x
  2. Step 2: Convert to fraction form
    6,242.13/8,612.43 = 3,590.39/x
  3. Step 3: Cross multiply
    6,242.13x = 8,612.43 × 3,590.39
  4. Step 4: Simplify right side
    6,242.13x = 30,921,990.61
  5. Step 5: Solve for x
    x = 30,921,990.61/6,242.13
  6. Step 6: Final answer
    x = 4,953.76

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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.