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Finding the Fourth Proportional to 45,059.40, 67,480.13 and 43,878.42

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Solution

The fourth proportional to 45,059.40, 67,480.13 and 43,878.42 is: 65,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,059.40 : 67,480.13 = 43,878.42 : x
  2. Step 2: Convert to fraction form
    45,059.40/67,480.13 = 43,878.42/x
  3. Step 3: Cross multiply
    45,059.40x = 67,480.13 × 43,878.42
  4. Step 4: Simplify right side
    45,059.40x = 2,960,921,485.79
  5. Step 5: Solve for x
    x = 2,960,921,485.79/45,059.40
  6. Step 6: Final answer
    x = 65,711.52

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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.