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Finding the Fourth Proportional to 40,404.15, 60,610.41 and 15,465.20

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Solution

The fourth proportional to 40,404.15, 60,610.41 and 15,465.20 is: 23,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,404.15 : 60,610.41 = 15,465.20 : x
  2. Step 2: Convert to fraction form
    40,404.15/60,610.41 = 15,465.20/x
  3. Step 3: Cross multiply
    40,404.15x = 60,610.41 × 15,465.20
  4. Step 4: Simplify right side
    40,404.15x = 937,351,809.68
  5. Step 5: Solve for x
    x = 937,351,809.68/40,404.15
  6. Step 6: Final answer
    x = 23,199.39

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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.