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Finding the Fourth Proportional to 15.60, 23.26 and 15.46

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Solution

The fourth proportional to 15.60, 23.26 and 15.46 is: 23.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.60 : 23.26 = 15.46 : x
  2. Step 2: Convert to fraction form
    15.60/23.26 = 15.46/x
  3. Step 3: Cross multiply
    15.60x = 23.26 × 15.46
  4. Step 4: Simplify right side
    15.60x = 359.60
  5. Step 5: Solve for x
    x = 359.60/15.60
  6. Step 6: Final answer
    x = 23.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.