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Finding the Fourth Proportional to 56,908.70, 85,363.05 and 53,846.90

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Solution

The fourth proportional to 56,908.70, 85,363.05 and 53,846.90 is: 80,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,908.70 : 85,363.05 = 53,846.90 : x
  2. Step 2: Convert to fraction form
    56,908.70/85,363.05 = 53,846.90/x
  3. Step 3: Cross multiply
    56,908.70x = 85,363.05 × 53,846.90
  4. Step 4: Simplify right side
    56,908.70x = 4,596,535,617.05
  5. Step 5: Solve for x
    x = 4,596,535,617.05/56,908.70
  6. Step 6: Final answer
    x = 80,770.35

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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.