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Finding the Fourth Proportional to 13,443,556.90, 20,165,335.35 and 13,443,556.90

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Solution

The fourth proportional to 13,443,556.90, 20,165,335.35 and 13,443,556.90 is: 20,165,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,556.90 : 20,165,335.35 = 13,443,556.90 : x
  2. Step 2: Convert to fraction form
    13,443,556.90/20,165,335.35 = 13,443,556.90/x
  3. Step 3: Cross multiply
    13,443,556.90x = 20,165,335.35 × 13,443,556.90
  4. Step 4: Simplify right side
    13,443,556.90x = 271,093,833,185,306.44
  5. Step 5: Solve for x
    x = 271,093,833,185,306.44/13,443,556.90
  6. Step 6: Final answer
    x = 20,165,335.35

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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.