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Finding the Fourth Proportional to 5,159.48, 7,738.96 and 4,855.08

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Solution

The fourth proportional to 5,159.48, 7,738.96 and 4,855.08 is: 7,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.48 : 7,738.96 = 4,855.08 : x
  2. Step 2: Convert to fraction form
    5,159.48/7,738.96 = 4,855.08/x
  3. Step 3: Cross multiply
    5,159.48x = 7,738.96 × 4,855.08
  4. Step 4: Simplify right side
    5,159.48x = 37,573,269.92
  5. Step 5: Solve for x
    x = 37,573,269.92/5,159.48
  6. Step 6: Final answer
    x = 7,282.38

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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.