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Finding the Fourth Proportional to 67,905.70, 93,708.95 and 37,690.94

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Solution

The fourth proportional to 67,905.70, 93,708.95 and 37,690.94 is: 52,012.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,905.70 : 93,708.95 = 37,690.94 : x
  2. Step 2: Convert to fraction form
    67,905.70/93,708.95 = 37,690.94/x
  3. Step 3: Cross multiply
    67,905.70x = 93,708.95 × 37,690.94
  4. Step 4: Simplify right side
    67,905.70x = 3,531,978,457.73
  5. Step 5: Solve for x
    x = 3,531,978,457.73/67,905.70
  6. Step 6: Final answer
    x = 52,012.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.