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Finding the Fourth Proportional to 13,969,495,280.90, 20,954,242,921.35 and 13,969,495,280.90

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Solution

The fourth proportional to 13,969,495,280.90, 20,954,242,921.35 and 13,969,495,280.90 is: 20,954,242,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969,495,280.90 : 20,954,242,921.35 = 13,969,495,280.90 : x
  2. Step 2: Convert to fraction form
    13,969,495,280.90/20,954,242,921.35 = 13,969,495,280.90/x
  3. Step 3: Cross multiply
    13,969,495,280.90x = 20,954,242,921.35 × 13,969,495,280.90
  4. Step 4: Simplify right side
    13,969,495,280.90x = 292,720,197,604,631,019,520
  5. Step 5: Solve for x
    x = 292,720,197,604,631,019,520/13,969,495,280.90
  6. Step 6: Final answer
    x = 20,954,242,921.35

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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.