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Finding the Fourth Proportional to 45,411.40, 68,019.90 and 37,635.40

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Solution

The fourth proportional to 45,411.40, 68,019.90 and 37,635.40 is: 56,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,411.40 : 68,019.90 = 37,635.40 : x
  2. Step 2: Convert to fraction form
    45,411.40/68,019.90 = 37,635.40/x
  3. Step 3: Cross multiply
    45,411.40x = 68,019.90 × 37,635.40
  4. Step 4: Simplify right side
    45,411.40x = 2,559,956,144.46
  5. Step 5: Solve for x
    x = 2,559,956,144.46/45,411.40
  6. Step 6: Final answer
    x = 56,372.54

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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.