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Finding the Fourth Proportional to 47,428.53, 65,448.52 and 25,913.98

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Solution

The fourth proportional to 47,428.53, 65,448.52 and 25,913.98 is: 35,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,428.53 : 65,448.52 = 25,913.98 : x
  2. Step 2: Convert to fraction form
    47,428.53/65,448.52 = 25,913.98/x
  3. Step 3: Cross multiply
    47,428.53x = 65,448.52 × 25,913.98
  4. Step 4: Simplify right side
    47,428.53x = 1,696,031,638.31
  5. Step 5: Solve for x
    x = 1,696,031,638.31/47,428.53
  6. Step 6: Final answer
    x = 35,759.73

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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.