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Finding the Fourth Proportional to 59,765.04, 89,621.64 and 20,311.56

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Solution

The fourth proportional to 59,765.04, 89,621.64 and 20,311.56 is: 30,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,765.04 : 89,621.64 = 20,311.56 : x
  2. Step 2: Convert to fraction form
    59,765.04/89,621.64 = 20,311.56/x
  3. Step 3: Cross multiply
    59,765.04x = 89,621.64 × 20,311.56
  4. Step 4: Simplify right side
    59,765.04x = 1,820,355,318.16
  5. Step 5: Solve for x
    x = 1,820,355,318.16/59,765.04
  6. Step 6: Final answer
    x = 30,458.53

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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.