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Finding the Fourth Proportional to 66,709.17, 92,057.90 and 36,495.36

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Solution

The fourth proportional to 66,709.17, 92,057.90 and 36,495.36 is: 50,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,709.17 : 92,057.90 = 36,495.36 : x
  2. Step 2: Convert to fraction form
    66,709.17/92,057.90 = 36,495.36/x
  3. Step 3: Cross multiply
    66,709.17x = 92,057.90 × 36,495.36
  4. Step 4: Simplify right side
    66,709.17x = 3,359,686,201.34
  5. Step 5: Solve for x
    x = 3,359,686,201.34/66,709.17
  6. Step 6: Final answer
    x = 50,363.18

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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.