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Finding the Fourth Proportional to 20,598.94, 30,900.84 and 15,437.62

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Solution

The fourth proportional to 20,598.94, 30,900.84 and 15,437.62 is: 23,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.94 : 30,900.84 = 15,437.62 : x
  2. Step 2: Convert to fraction form
    20,598.94/30,900.84 = 15,437.62/x
  3. Step 3: Cross multiply
    20,598.94x = 30,900.84 × 15,437.62
  4. Step 4: Simplify right side
    20,598.94x = 477,035,425.60
  5. Step 5: Solve for x
    x = 477,035,425.60/20,598.94
  6. Step 6: Final answer
    x = 23,158.25

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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.