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Finding the Fourth Proportional to 20,598.96, 30,871.96 and 9,346.08

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Solution

The fourth proportional to 20,598.96, 30,871.96 and 9,346.08 is: 14,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.96 : 30,871.96 = 9,346.08 : x
  2. Step 2: Convert to fraction form
    20,598.96/30,871.96 = 9,346.08/x
  3. Step 3: Cross multiply
    20,598.96x = 30,871.96 × 9,346.08
  4. Step 4: Simplify right side
    20,598.96x = 288,531,807.92
  5. Step 5: Solve for x
    x = 288,531,807.92/20,598.96
  6. Step 6: Final answer
    x = 14,007.11

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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.