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Finding the Fourth Proportional to 14,763.76, 20,374.14 and 8,795.50

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Solution

The fourth proportional to 14,763.76, 20,374.14 and 8,795.50 is: 12,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,763.76 : 20,374.14 = 8,795.50 : x
  2. Step 2: Convert to fraction form
    14,763.76/20,374.14 = 8,795.50/x
  3. Step 3: Cross multiply
    14,763.76x = 20,374.14 × 8,795.50
  4. Step 4: Simplify right side
    14,763.76x = 179,200,748.37
  5. Step 5: Solve for x
    x = 179,200,748.37/14,763.76
  6. Step 6: Final answer
    x = 12,137.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.