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Finding the Fourth Proportional to 15,137.60, 22,706.53 and 5,276.86

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Solution

The fourth proportional to 15,137.60, 22,706.53 and 5,276.86 is: 7,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,137.60 : 22,706.53 = 5,276.86 : x
  2. Step 2: Convert to fraction form
    15,137.60/22,706.53 = 5,276.86/x
  3. Step 3: Cross multiply
    15,137.60x = 22,706.53 × 5,276.86
  4. Step 4: Simplify right side
    15,137.60x = 119,819,237.66
  5. Step 5: Solve for x
    x = 119,819,237.66/15,137.60
  6. Step 6: Final answer
    x = 7,915.34

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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.