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Finding the Fourth Proportional to 42,556.94, 58,710.94 and 25,325.87

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Solution

The fourth proportional to 42,556.94, 58,710.94 and 25,325.87 is: 34,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,556.94 : 58,710.94 = 25,325.87 : x
  2. Step 2: Convert to fraction form
    42,556.94/58,710.94 = 25,325.87/x
  3. Step 3: Cross multiply
    42,556.94x = 58,710.94 × 25,325.87
  4. Step 4: Simplify right side
    42,556.94x = 1,486,905,419.61
  5. Step 5: Solve for x
    x = 1,486,905,419.61/42,556.94
  6. Step 6: Final answer
    x = 34,939.20

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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.