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Finding the Fourth Proportional to 45,833.40, 68,793.30 and 28,337.40

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Solution

The fourth proportional to 45,833.40, 68,793.30 and 28,337.40 is: 42,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,833.40 : 68,793.30 = 28,337.40 : x
  2. Step 2: Convert to fraction form
    45,833.40/68,793.30 = 28,337.40/x
  3. Step 3: Cross multiply
    45,833.40x = 68,793.30 × 28,337.40
  4. Step 4: Simplify right side
    45,833.40x = 1,949,423,259.42
  5. Step 5: Solve for x
    x = 1,949,423,259.42/45,833.40
  6. Step 6: Final answer
    x = 42,532.81

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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.