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Finding the Fourth Proportional to 45,543.67, 68,315.51 and 15,961.51

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Solution

The fourth proportional to 45,543.67, 68,315.51 and 15,961.51 is: 23,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,543.67 : 68,315.51 = 15,961.51 : x
  2. Step 2: Convert to fraction form
    45,543.67/68,315.51 = 15,961.51/x
  3. Step 3: Cross multiply
    45,543.67x = 68,315.51 × 15,961.51
  4. Step 4: Simplify right side
    45,543.67x = 1,090,418,437.04
  5. Step 5: Solve for x
    x = 1,090,418,437.04/45,543.67
  6. Step 6: Final answer
    x = 23,942.26

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Similar ratio
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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.