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Finding the Fourth Proportional to 57,000.70, 79,932.20 and 57,000.70

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Solution

The fourth proportional to 57,000.70, 79,932.20 and 57,000.70 is: 79,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,000.70 : 79,932.20 = 57,000.70 : x
  2. Step 2: Convert to fraction form
    57,000.70/79,932.20 = 57,000.70/x
  3. Step 3: Cross multiply
    57,000.70x = 79,932.20 × 57,000.70
  4. Step 4: Simplify right side
    57,000.70x = 4,556,191,352.54
  5. Step 5: Solve for x
    x = 4,556,191,352.54/57,000.70
  6. Step 6: Final answer
    x = 79,932.20

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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.