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Finding the Fourth Proportional to 57,800.40, 79,760.64 and 32,648.28

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Solution

The fourth proportional to 57,800.40, 79,760.64 and 32,648.28 is: 45,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,800.40 : 79,760.64 = 32,648.28 : x
  2. Step 2: Convert to fraction form
    57,800.40/79,760.64 = 32,648.28/x
  3. Step 3: Cross multiply
    57,800.40x = 79,760.64 × 32,648.28
  4. Step 4: Simplify right side
    57,800.40x = 2,604,047,707.70
  5. Step 5: Solve for x
    x = 2,604,047,707.70/57,800.40
  6. Step 6: Final answer
    x = 45,052.42

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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.