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Finding the Fourth Proportional to 57,358.45, 79,152.10 and 31,866.46

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Solution

The fourth proportional to 57,358.45, 79,152.10 and 31,866.46 is: 43,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,358.45 : 79,152.10 = 31,866.46 : x
  2. Step 2: Convert to fraction form
    57,358.45/79,152.10 = 31,866.46/x
  3. Step 3: Cross multiply
    57,358.45x = 79,152.10 × 31,866.46
  4. Step 4: Simplify right side
    57,358.45x = 2,522,296,673.47
  5. Step 5: Solve for x
    x = 2,522,296,673.47/57,358.45
  6. Step 6: Final answer
    x = 43,974.28

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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.