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Finding the Fourth Proportional to 66,959.34, 92,399.58 and 38,664.42

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Solution

The fourth proportional to 66,959.34, 92,399.58 and 38,664.42 is: 53,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,959.34 : 92,399.58 = 38,664.42 : x
  2. Step 2: Convert to fraction form
    66,959.34/92,399.58 = 38,664.42/x
  3. Step 3: Cross multiply
    66,959.34x = 92,399.58 × 38,664.42
  4. Step 4: Simplify right side
    66,959.34x = 3,572,576,168.94
  5. Step 5: Solve for x
    x = 3,572,576,168.94/66,959.34
  6. Step 6: Final answer
    x = 53,354.41

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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.