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Finding the Fourth Proportional to 34,599.71, 51,915.95 and 20,587.43

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Solution

The fourth proportional to 34,599.71, 51,915.95 and 20,587.43 is: 30,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,599.71 : 51,915.95 = 20,587.43 : x
  2. Step 2: Convert to fraction form
    34,599.71/51,915.95 = 20,587.43/x
  3. Step 3: Cross multiply
    34,599.71x = 51,915.95 × 20,587.43
  4. Step 4: Simplify right side
    34,599.71x = 1,068,815,986.51
  5. Step 5: Solve for x
    x = 1,068,815,986.51/34,599.71
  6. Step 6: Final answer
    x = 30,890.89

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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.