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Finding the Fourth Proportional to 48,381, 72,571.52 and 17,216.36

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Solution

The fourth proportional to 48,381, 72,571.52 and 17,216.36 is: 25,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,381 : 72,571.52 = 17,216.36 : x
  2. Step 2: Convert to fraction form
    48,381/72,571.52 = 17,216.36/x
  3. Step 3: Cross multiply
    48,381x = 72,571.52 × 17,216.36
  4. Step 4: Simplify right side
    48,381x = 1,249,417,414.07
  5. Step 5: Solve for x
    x = 1,249,417,414.07/48,381
  6. Step 6: Final answer
    x = 25,824.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.