Home / 43,193.32-64,800.20-13,611.05

Finding the Fourth Proportional to 43,193.32, 64,800.20 and 13,611.05

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Solution

The fourth proportional to 43,193.32, 64,800.20 and 13,611.05 is: 20,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,193.32 : 64,800.20 = 13,611.05 : x
  2. Step 2: Convert to fraction form
    43,193.32/64,800.20 = 13,611.05/x
  3. Step 3: Cross multiply
    43,193.32x = 64,800.20 × 13,611.05
  4. Step 4: Simplify right side
    43,193.32x = 881,998,762.21
  5. Step 5: Solve for x
    x = 881,998,762.21/43,193.32
  6. Step 6: Final answer
    x = 20,419.80

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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.