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Finding the Fourth Proportional to 37,759.70, 56,639.35 and 9,679.70

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Solution

The fourth proportional to 37,759.70, 56,639.35 and 9,679.70 is: 14,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,759.70 : 56,639.35 = 9,679.70 : x
  2. Step 2: Convert to fraction form
    37,759.70/56,639.35 = 9,679.70/x
  3. Step 3: Cross multiply
    37,759.70x = 56,639.35 × 9,679.70
  4. Step 4: Simplify right side
    37,759.70x = 548,251,916.20
  5. Step 5: Solve for x
    x = 548,251,916.20/37,759.70
  6. Step 6: Final answer
    x = 14,519.50

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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.