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Finding the Fourth Proportional to 66,707.31, 92,056.82 and 36,491.99

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Solution

The fourth proportional to 66,707.31, 92,056.82 and 36,491.99 is: 50,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,707.31 : 92,056.82 = 36,491.99 : x
  2. Step 2: Convert to fraction form
    66,707.31/92,056.82 = 36,491.99/x
  3. Step 3: Cross multiply
    66,707.31x = 92,056.82 × 36,491.99
  4. Step 4: Simplify right side
    66,707.31x = 3,359,336,014.76
  5. Step 5: Solve for x
    x = 3,359,336,014.76/66,707.31
  6. Step 6: Final answer
    x = 50,359.34

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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.