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Finding the Fourth Proportional to 2,597.42, 3,896.75 and 748.51

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Solution

The fourth proportional to 2,597.42, 3,896.75 and 748.51 is: 1,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,597.42 : 3,896.75 = 748.51 : x
  2. Step 2: Convert to fraction form
    2,597.42/3,896.75 = 748.51/x
  3. Step 3: Cross multiply
    2,597.42x = 3,896.75 × 748.51
  4. Step 4: Simplify right side
    2,597.42x = 2,916,748.47
  5. Step 5: Solve for x
    x = 2,916,748.47/2,597.42
  6. Step 6: Final answer
    x = 1,122.94

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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.