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Finding the Fourth Proportional to 3,316.65, 5,000.12 and 3,316.65

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Solution

The fourth proportional to 3,316.65, 5,000.12 and 3,316.65 is: 5,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.65 : 5,000.12 = 3,316.65 : x
  2. Step 2: Convert to fraction form
    3,316.65/5,000.12 = 3,316.65/x
  3. Step 3: Cross multiply
    3,316.65x = 5,000.12 × 3,316.65
  4. Step 4: Simplify right side
    3,316.65x = 16,583,631.41
  5. Step 5: Solve for x
    x = 16,583,631.41/3,316.65
  6. Step 6: Final answer
    x = 5,000.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.