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Finding the Fourth Proportional to 18,838,697,078.20, 28,196,823,614.10 and 18,838,697,078.20

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Solution

The fourth proportional to 18,838,697,078.20, 28,196,823,614.10 and 18,838,697,078.20 is: 28,196,823,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838,697,078.20 : 28,196,823,614.10 = 18,838,697,078.20 : x
  2. Step 2: Convert to fraction form
    18,838,697,078.20/28,196,823,614.10 = 18,838,697,078.20/x
  3. Step 3: Cross multiply
    18,838,697,078.20x = 28,196,823,614.10 × 18,838,697,078.20
  4. Step 4: Simplify right side
    18,838,697,078.20x = 531,191,418,633,466,413,056
  5. Step 5: Solve for x
    x = 531,191,418,633,466,413,056/18,838,697,078.20
  6. Step 6: Final answer
    x = 28,196,823,614.10

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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.