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Finding the Fourth Proportional to 62,465.54, 86,178.22 and 39,800.46

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Solution

The fourth proportional to 62,465.54, 86,178.22 and 39,800.46 is: 54,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,465.54 : 86,178.22 = 39,800.46 : x
  2. Step 2: Convert to fraction form
    62,465.54/86,178.22 = 39,800.46/x
  3. Step 3: Cross multiply
    62,465.54x = 86,178.22 × 39,800.46
  4. Step 4: Simplify right side
    62,465.54x = 3,429,932,797.98
  5. Step 5: Solve for x
    x = 3,429,932,797.98/62,465.54
  6. Step 6: Final answer
    x = 54,909.20

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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.