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Finding the Fourth Proportional to 14,762.76, 20,372.76 and 8,794.50

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Solution

The fourth proportional to 14,762.76, 20,372.76 and 8,794.50 is: 12,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.76 : 20,372.76 = 8,794.50 : x
  2. Step 2: Convert to fraction form
    14,762.76/20,372.76 = 8,794.50/x
  3. Step 3: Cross multiply
    14,762.76x = 20,372.76 × 8,794.50
  4. Step 4: Simplify right side
    14,762.76x = 179,168,237.82
  5. Step 5: Solve for x
    x = 179,168,237.82/14,762.76
  6. Step 6: Final answer
    x = 12,136.50

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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.