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Finding the Fourth Proportional to 14,762.35, 20,372.53 and 8,793.20

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Solution

The fourth proportional to 14,762.35, 20,372.53 and 8,793.20 is: 12,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.35 : 20,372.53 = 8,793.20 : x
  2. Step 2: Convert to fraction form
    14,762.35/20,372.53 = 8,793.20/x
  3. Step 3: Cross multiply
    14,762.35x = 20,372.53 × 8,793.20
  4. Step 4: Simplify right side
    14,762.35x = 179,139,686.83
  5. Step 5: Solve for x
    x = 179,139,686.83/14,762.35
  6. Step 6: Final answer
    x = 12,134.91

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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.