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Finding the Fourth Proportional to 13,927,368.20, 20,891,052.30 and 13,927,368.20

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Solution

The fourth proportional to 13,927,368.20, 20,891,052.30 and 13,927,368.20 is: 20,891,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927,368.20 : 20,891,052.30 = 13,927,368.20 : x
  2. Step 2: Convert to fraction form
    13,927,368.20/20,891,052.30 = 13,927,368.20/x
  3. Step 3: Cross multiply
    13,927,368.20x = 20,891,052.30 × 13,927,368.20
  4. Step 4: Simplify right side
    13,927,368.20x = 290,957,377,467,556.88
  5. Step 5: Solve for x
    x = 290,957,377,467,556.88/13,927,368.20
  6. Step 6: Final answer
    x = 20,891,052.30

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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.