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Finding the Fourth Proportional to 40,499.70, 56,757.90 and 40,499.70

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Solution

The fourth proportional to 40,499.70, 56,757.90 and 40,499.70 is: 56,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,499.70 : 56,757.90 = 40,499.70 : x
  2. Step 2: Convert to fraction form
    40,499.70/56,757.90 = 40,499.70/x
  3. Step 3: Cross multiply
    40,499.70x = 56,757.90 × 40,499.70
  4. Step 4: Simplify right side
    40,499.70x = 2,298,677,922.63
  5. Step 5: Solve for x
    x = 2,298,677,922.63/40,499.70
  6. Step 6: Final answer
    x = 56,757.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.