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Finding the Fourth Proportional to 53.01, 79.43 and 46.26

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Solution

The fourth proportional to 53.01, 79.43 and 46.26 is: 69.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.01 : 79.43 = 46.26 : x
  2. Step 2: Convert to fraction form
    53.01/79.43 = 46.26/x
  3. Step 3: Cross multiply
    53.01x = 79.43 × 46.26
  4. Step 4: Simplify right side
    53.01x = 3,674.20
  5. Step 5: Solve for x
    x = 3,674.20/53.01
  6. Step 6: Final answer
    x = 69.31

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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.