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Finding the Fourth Proportional to 62,324.63, 85,964.34 and 42,172.64

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Solution

The fourth proportional to 62,324.63, 85,964.34 and 42,172.64 is: 58,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,324.63 : 85,964.34 = 42,172.64 : x
  2. Step 2: Convert to fraction form
    62,324.63/85,964.34 = 42,172.64/x
  3. Step 3: Cross multiply
    62,324.63x = 85,964.34 × 42,172.64
  4. Step 4: Simplify right side
    62,324.63x = 3,625,342,522.97
  5. Step 5: Solve for x
    x = 3,625,342,522.97/62,324.63
  6. Step 6: Final answer
    x = 58,168.70

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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.