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Finding the Fourth Proportional to 64,207.70, 96,311.55 and 16,822.70

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Solution

The fourth proportional to 64,207.70, 96,311.55 and 16,822.70 is: 25,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,207.70 : 96,311.55 = 16,822.70 : x
  2. Step 2: Convert to fraction form
    64,207.70/96,311.55 = 16,822.70/x
  3. Step 3: Cross multiply
    64,207.70x = 96,311.55 × 16,822.70
  4. Step 4: Simplify right side
    64,207.70x = 1,620,220,312.19
  5. Step 5: Solve for x
    x = 1,620,220,312.19/64,207.70
  6. Step 6: Final answer
    x = 25,234.05

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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.