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Finding the Fourth Proportional to 46.95, 64.79 and 26.23

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Solution

The fourth proportional to 46.95, 64.79 and 26.23 is: 36.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.95 : 64.79 = 26.23 : x
  2. Step 2: Convert to fraction form
    46.95/64.79 = 26.23/x
  3. Step 3: Cross multiply
    46.95x = 64.79 × 26.23
  4. Step 4: Simplify right side
    46.95x = 1,699.62
  5. Step 5: Solve for x
    x = 1,699.62/46.95
  6. Step 6: Final answer
    x = 36.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.