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Finding the Fourth Proportional to 15,777.48, 23,662.88 and 5,917.49

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Solution

The fourth proportional to 15,777.48, 23,662.88 and 5,917.49 is: 8,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,777.48 : 23,662.88 = 5,917.49 : x
  2. Step 2: Convert to fraction form
    15,777.48/23,662.88 = 5,917.49/x
  3. Step 3: Cross multiply
    15,777.48x = 23,662.88 × 5,917.49
  4. Step 4: Simplify right side
    15,777.48x = 140,024,855.77
  5. Step 5: Solve for x
    x = 140,024,855.77/15,777.48
  6. Step 6: Final answer
    x = 8,874.98

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1.5x scale

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.