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Finding the Fourth Proportional to 7,241.11, 9,994.43 and 4,718.86

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Solution

The fourth proportional to 7,241.11, 9,994.43 and 4,718.86 is: 6,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.11 : 9,994.43 = 4,718.86 : x
  2. Step 2: Convert to fraction form
    7,241.11/9,994.43 = 4,718.86/x
  3. Step 3: Cross multiply
    7,241.11x = 9,994.43 × 4,718.86
  4. Step 4: Simplify right side
    7,241.11x = 47,162,315.95
  5. Step 5: Solve for x
    x = 47,162,315.95/7,241.11
  6. Step 6: Final answer
    x = 6,513.13

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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.