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Finding the Fourth Proportional to 20,598.60, 30,893.04 and 5,808.90

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Solution

The fourth proportional to 20,598.60, 30,893.04 and 5,808.90 is: 8,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.60 : 30,893.04 = 5,808.90 : x
  2. Step 2: Convert to fraction form
    20,598.60/30,893.04 = 5,808.90/x
  3. Step 3: Cross multiply
    20,598.60x = 30,893.04 × 5,808.90
  4. Step 4: Simplify right side
    20,598.60x = 179,454,580.06
  5. Step 5: Solve for x
    x = 179,454,580.06/20,598.60
  6. Step 6: Final answer
    x = 8,711.98

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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.