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Finding the Fourth Proportional to 4,991.12, 7,486.74 and 2,393.48

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Solution

The fourth proportional to 4,991.12, 7,486.74 and 2,393.48 is: 3,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.12 : 7,486.74 = 2,393.48 : x
  2. Step 2: Convert to fraction form
    4,991.12/7,486.74 = 2,393.48/x
  3. Step 3: Cross multiply
    4,991.12x = 7,486.74 × 2,393.48
  4. Step 4: Simplify right side
    4,991.12x = 17,919,362.46
  5. Step 5: Solve for x
    x = 17,919,362.46/4,991.12
  6. Step 6: Final answer
    x = 3,590.25

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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.