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Finding the Fourth Proportional to 14,913.76, 22,336.88 and 8,580.64

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Solution

The fourth proportional to 14,913.76, 22,336.88 and 8,580.64 is: 12,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.76 : 22,336.88 = 8,580.64 : x
  2. Step 2: Convert to fraction form
    14,913.76/22,336.88 = 8,580.64/x
  3. Step 3: Cross multiply
    14,913.76x = 22,336.88 × 8,580.64
  4. Step 4: Simplify right side
    14,913.76x = 191,664,726.00
  5. Step 5: Solve for x
    x = 191,664,726.00/14,913.76
  6. Step 6: Final answer
    x = 12,851.54

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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.