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Finding the Fourth Proportional to 5,199.90, 7,804.80 and 4,837.92

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Solution

The fourth proportional to 5,199.90, 7,804.80 and 4,837.92 is: 7,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.90 : 7,804.80 = 4,837.92 : x
  2. Step 2: Convert to fraction form
    5,199.90/7,804.80 = 4,837.92/x
  3. Step 3: Cross multiply
    5,199.90x = 7,804.80 × 4,837.92
  4. Step 4: Simplify right side
    5,199.90x = 37,758,998.02
  5. Step 5: Solve for x
    x = 37,758,998.02/5,199.90
  6. Step 6: Final answer
    x = 7,261.49

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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.