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Finding the Fourth Proportional to 13,620,296,952.90, 20,430,445,429.35 and 13,620,296,952.90

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Solution

The fourth proportional to 13,620,296,952.90, 20,430,445,429.35 and 13,620,296,952.90 is: 20,430,445,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,296,952.90 : 20,430,445,429.35 = 13,620,296,952.90 : x
  2. Step 2: Convert to fraction form
    13,620,296,952.90/20,430,445,429.35 = 13,620,296,952.90/x
  3. Step 3: Cross multiply
    13,620,296,952.90x = 20,430,445,429.35 × 13,620,296,952.90
  4. Step 4: Simplify right side
    13,620,296,952.90x = 278,268,733,627,765,522,432
  5. Step 5: Solve for x
    x = 278,268,733,627,765,522,432/13,620,296,952.90
  6. Step 6: Final answer
    x = 20,430,445,429.35

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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.