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Finding the Fourth Proportional to 48,485.84, 72,725.48 and 12,944.48

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Solution

The fourth proportional to 48,485.84, 72,725.48 and 12,944.48 is: 19,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,485.84 : 72,725.48 = 12,944.48 : x
  2. Step 2: Convert to fraction form
    48,485.84/72,725.48 = 12,944.48/x
  3. Step 3: Cross multiply
    48,485.84x = 72,725.48 × 12,944.48
  4. Step 4: Simplify right side
    48,485.84x = 941,393,521.35
  5. Step 5: Solve for x
    x = 941,393,521.35/48,485.84
  6. Step 6: Final answer
    x = 19,415.84

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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.