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Finding the Fourth Proportional to 13,642,100.60, 20,463,150.90 and 13,642,100.60

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Solution

The fourth proportional to 13,642,100.60, 20,463,150.90 and 13,642,100.60 is: 20,463,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,100.60 : 20,463,150.90 = 13,642,100.60 : x
  2. Step 2: Convert to fraction form
    13,642,100.60/20,463,150.90 = 13,642,100.60/x
  3. Step 3: Cross multiply
    13,642,100.60x = 20,463,150.90 × 13,642,100.60
  4. Step 4: Simplify right side
    13,642,100.60x = 279,160,363,170,780.50
  5. Step 5: Solve for x
    x = 279,160,363,170,780.50/13,642,100.60
  6. Step 6: Final answer
    x = 20,463,150.90

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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.