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Finding the Fourth Proportional to 45,308.34, 67,915.99 and 15,709.99

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Solution

The fourth proportional to 45,308.34, 67,915.99 and 15,709.99 is: 23,548.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,308.34 : 67,915.99 = 15,709.99 : x
  2. Step 2: Convert to fraction form
    45,308.34/67,915.99 = 15,709.99/x
  3. Step 3: Cross multiply
    45,308.34x = 67,915.99 × 15,709.99
  4. Step 4: Simplify right side
    45,308.34x = 1,066,959,523.74
  5. Step 5: Solve for x
    x = 1,066,959,523.74/45,308.34
  6. Step 6: Final answer
    x = 23,548.85

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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.