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Finding the Fourth Proportional to 51,391.69, 77,086.41 and 23,689.69

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Solution

The fourth proportional to 51,391.69, 77,086.41 and 23,689.69 is: 35,534.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,391.69 : 77,086.41 = 23,689.69 : x
  2. Step 2: Convert to fraction form
    51,391.69/77,086.41 = 23,689.69/x
  3. Step 3: Cross multiply
    51,391.69x = 77,086.41 × 23,689.69
  4. Step 4: Simplify right side
    51,391.69x = 1,826,153,156.11
  5. Step 5: Solve for x
    x = 1,826,153,156.11/51,391.69
  6. Step 6: Final answer
    x = 35,534.02

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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.