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Finding the Fourth Proportional to 42,250.46, 63,358.68 and 15,940.88

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Solution

The fourth proportional to 42,250.46, 63,358.68 and 15,940.88 is: 23,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,250.46 : 63,358.68 = 15,940.88 : x
  2. Step 2: Convert to fraction form
    42,250.46/63,358.68 = 15,940.88/x
  3. Step 3: Cross multiply
    42,250.46x = 63,358.68 × 15,940.88
  4. Step 4: Simplify right side
    42,250.46x = 1,009,993,114.84
  5. Step 5: Solve for x
    x = 1,009,993,114.84/42,250.46
  6. Step 6: Final answer
    x = 23,904.90

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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.