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Finding the Fourth Proportional to 40,438.80, 60,669.56 and 40,438.80

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Solution

The fourth proportional to 40,438.80, 60,669.56 and 40,438.80 is: 60,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,438.80 : 60,669.56 = 40,438.80 : x
  2. Step 2: Convert to fraction form
    40,438.80/60,669.56 = 40,438.80/x
  3. Step 3: Cross multiply
    40,438.80x = 60,669.56 × 40,438.80
  4. Step 4: Simplify right side
    40,438.80x = 2,453,404,202.93
  5. Step 5: Solve for x
    x = 2,453,404,202.93/40,438.80
  6. Step 6: Final answer
    x = 60,669.56

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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.