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Finding the Fourth Proportional to 20,570,166,247.20, 30,855,249,370.80 and 20,570,166,247.20

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Solution

The fourth proportional to 20,570,166,247.20, 30,855,249,370.80 and 20,570,166,247.20 is: 30,855,249,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570,166,247.20 : 30,855,249,370.80 = 20,570,166,247.20 : x
  2. Step 2: Convert to fraction form
    20,570,166,247.20/30,855,249,370.80 = 20,570,166,247.20/x
  3. Step 3: Cross multiply
    20,570,166,247.20x = 30,855,249,370.80 × 20,570,166,247.20
  4. Step 4: Simplify right side
    20,570,166,247.20x = 634,697,609,156,169,170,944
  5. Step 5: Solve for x
    x = 634,697,609,156,169,170,944/20,570,166,247.20
  6. Step 6: Final answer
    x = 30,855,249,370.80

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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.