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Finding the Fourth Proportional to 4,726.90, 7,090.42 and 1,648.90

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Solution

The fourth proportional to 4,726.90, 7,090.42 and 1,648.90 is: 2,473.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,726.90 : 7,090.42 = 1,648.90 : x
  2. Step 2: Convert to fraction form
    4,726.90/7,090.42 = 1,648.90/x
  3. Step 3: Cross multiply
    4,726.90x = 7,090.42 × 1,648.90
  4. Step 4: Simplify right side
    4,726.90x = 11,691,393.54
  5. Step 5: Solve for x
    x = 11,691,393.54/4,726.90
  6. Step 6: Final answer
    x = 2,473.37

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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.