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Finding the Fourth Proportional to 59,969.57, 89,855.83 and 20,505.15

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Solution

The fourth proportional to 59,969.57, 89,855.83 and 20,505.15 is: 30,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,969.57 : 89,855.83 = 20,505.15 : x
  2. Step 2: Convert to fraction form
    59,969.57/89,855.83 = 20,505.15/x
  3. Step 3: Cross multiply
    59,969.57x = 89,855.83 × 20,505.15
  4. Step 4: Simplify right side
    59,969.57x = 1,842,507,298.16
  5. Step 5: Solve for x
    x = 1,842,507,298.16/59,969.57
  6. Step 6: Final answer
    x = 30,724.04

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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.