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Finding the Fourth Proportional to 65,158.54, 89,911.20 and 36,479.77

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Solution

The fourth proportional to 65,158.54, 89,911.20 and 36,479.77 is: 50,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,158.54 : 89,911.20 = 36,479.77 : x
  2. Step 2: Convert to fraction form
    65,158.54/89,911.20 = 36,479.77/x
  3. Step 3: Cross multiply
    65,158.54x = 89,911.20 × 36,479.77
  4. Step 4: Simplify right side
    65,158.54x = 3,279,939,896.42
  5. Step 5: Solve for x
    x = 3,279,939,896.42/65,158.54
  6. Step 6: Final answer
    x = 50,337.84

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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.