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Finding the Fourth Proportional to 5,348.93, 7,381.92 and 2,990.93

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Solution

The fourth proportional to 5,348.93, 7,381.92 and 2,990.93 is: 4,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.93 : 7,381.92 = 2,990.93 : x
  2. Step 2: Convert to fraction form
    5,348.93/7,381.92 = 2,990.93/x
  3. Step 3: Cross multiply
    5,348.93x = 7,381.92 × 2,990.93
  4. Step 4: Simplify right side
    5,348.93x = 22,078,805.99
  5. Step 5: Solve for x
    x = 22,078,805.99/5,348.93
  6. Step 6: Final answer
    x = 4,127.71

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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.