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Finding the Fourth Proportional to 20,096,031.60, 28,172,235.60 and 20,096,031.60

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Solution

The fourth proportional to 20,096,031.60, 28,172,235.60 and 20,096,031.60 is: 28,172,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096,031.60 : 28,172,235.60 = 20,096,031.60 : x
  2. Step 2: Convert to fraction form
    20,096,031.60/28,172,235.60 = 20,096,031.60/x
  3. Step 3: Cross multiply
    20,096,031.60x = 28,172,235.60 × 20,096,031.60
  4. Step 4: Simplify right side
    20,096,031.60x = 566,150,136,860,245
  5. Step 5: Solve for x
    x = 566,150,136,860,245/20,096,031.60
  6. Step 6: Final answer
    x = 28,172,235.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.