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Finding the Fourth Proportional to 48,664.12, 72,996.06 and 11,728.12

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Solution

The fourth proportional to 48,664.12, 72,996.06 and 11,728.12 is: 17,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,664.12 : 72,996.06 = 11,728.12 : x
  2. Step 2: Convert to fraction form
    48,664.12/72,996.06 = 11,728.12/x
  3. Step 3: Cross multiply
    48,664.12x = 72,996.06 × 11,728.12
  4. Step 4: Simplify right side
    48,664.12x = 856,106,551.21
  5. Step 5: Solve for x
    x = 856,106,551.21/48,664.12
  6. Step 6: Final answer
    x = 17,592.15

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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.