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Finding the Fourth Proportional to 4,981.11, 7,479.11 and 4,316.05

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Solution

The fourth proportional to 4,981.11, 7,479.11 and 4,316.05 is: 6,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.11 : 7,479.11 = 4,316.05 : x
  2. Step 2: Convert to fraction form
    4,981.11/7,479.11 = 4,316.05/x
  3. Step 3: Cross multiply
    4,981.11x = 7,479.11 × 4,316.05
  4. Step 4: Simplify right side
    4,981.11x = 32,280,212.72
  5. Step 5: Solve for x
    x = 32,280,212.72/4,981.11
  6. Step 6: Final answer
    x = 6,480.53

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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.