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Finding the Fourth Proportional to 67,898.67, 93,635.07 and 40,670.39

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Solution

The fourth proportional to 67,898.67, 93,635.07 and 40,670.39 is: 56,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,898.67 : 93,635.07 = 40,670.39 : x
  2. Step 2: Convert to fraction form
    67,898.67/93,635.07 = 40,670.39/x
  3. Step 3: Cross multiply
    67,898.67x = 93,635.07 × 40,670.39
  4. Step 4: Simplify right side
    67,898.67x = 3,808,174,896.15
  5. Step 5: Solve for x
    x = 3,808,174,896.15/67,898.67
  6. Step 6: Final answer
    x = 56,086.15

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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.