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Finding the Fourth Proportional to 4,999.27, 7,487.63 and 2,916.15

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Solution

The fourth proportional to 4,999.27, 7,487.63 and 2,916.15 is: 4,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.27 : 7,487.63 = 2,916.15 : x
  2. Step 2: Convert to fraction form
    4,999.27/7,487.63 = 2,916.15/x
  3. Step 3: Cross multiply
    4,999.27x = 7,487.63 × 2,916.15
  4. Step 4: Simplify right side
    4,999.27x = 21,835,052.22
  5. Step 5: Solve for x
    x = 21,835,052.22/4,999.27
  6. Step 6: Final answer
    x = 4,367.65

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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.