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Finding the Fourth Proportional to 48,507.66, 72,750.56 and 13,450.05

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Solution

The fourth proportional to 48,507.66, 72,750.56 and 13,450.05 is: 20,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,507.66 : 72,750.56 = 13,450.05 : x
  2. Step 2: Convert to fraction form
    48,507.66/72,750.56 = 13,450.05/x
  3. Step 3: Cross multiply
    48,507.66x = 72,750.56 × 13,450.05
  4. Step 4: Simplify right side
    48,507.66x = 978,498,602.28
  5. Step 5: Solve for x
    x = 978,498,602.28/48,507.66
  6. Step 6: Final answer
    x = 20,172.04

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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.