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Finding the Fourth Proportional to 47,371.50, 65,371.64 and 25,860.51

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Solution

The fourth proportional to 47,371.50, 65,371.64 and 25,860.51 is: 35,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,371.50 : 65,371.64 = 25,860.51 : x
  2. Step 2: Convert to fraction form
    47,371.50/65,371.64 = 25,860.51/x
  3. Step 3: Cross multiply
    47,371.50x = 65,371.64 × 25,860.51
  4. Step 4: Simplify right side
    47,371.50x = 1,690,543,820.63
  5. Step 5: Solve for x
    x = 1,690,543,820.63/47,371.50
  6. Step 6: Final answer
    x = 35,686.94

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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.