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Finding the Fourth Proportional to 57,704.40, 83,438.10 and 57,704.40

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Solution

The fourth proportional to 57,704.40, 83,438.10 and 57,704.40 is: 83,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,704.40 : 83,438.10 = 57,704.40 : x
  2. Step 2: Convert to fraction form
    57,704.40/83,438.10 = 57,704.40/x
  3. Step 3: Cross multiply
    57,704.40x = 83,438.10 × 57,704.40
  4. Step 4: Simplify right side
    57,704.40x = 4,814,745,497.64
  5. Step 5: Solve for x
    x = 4,814,745,497.64/57,704.40
  6. Step 6: Final answer
    x = 83,438.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.